Esthetics Practice Written Exam (1)
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What do estheticians focus on?
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Preventive skin care
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Maintance of healthy skin
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Makeup
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All of above
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This Esthetics Practice Written Exam (1) tests knowledge on skin conditions and treatments, including recognition of verruca, sebaceous glands, telangiectasia, psoriasis, benefits of clay masks, and identification of ulcers. It's designed for learners aiming to enhance their esthetician skills.
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- 2.
Melanin produce...
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Microcyte
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Hemocyte
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Oocyte
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Melanocyte
Correct Answer
A. MelanocyteExplanation
Melanocytes are the cells responsible for producing melanin, the pigment that gives color to the skin, hair, and eyes. These cells are found in the epidermis, the outer layer of the skin, and are responsible for protecting the skin from the harmful effects of the sun's ultraviolet (UV) rays. Melanocytes produce and distribute melanin to nearby skin cells, which helps to absorb UV radiation and prevent damage to the DNA in skin cells. This explanation is supported by the fact that the other options, microcyte, hemocyte, and oocyte, do not have any role in melanin production.Rate this question:
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- 3.
Sudoriferous excrete...
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Water & salt
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Oil
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Water & lactic acid
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Nothing
Correct Answer
A. Water & saltExplanation
Sudoriferous glands, also known as sweat glands, are responsible for producing sweat. Sweat is composed of water and salts, such as sodium and chloride. This mixture helps regulate body temperature by evaporating from the skin's surface, cooling the body down. Therefore, the correct answer is water and salt.Rate this question:
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- 4.
After tweezing eyebrows, what solution should you apply?
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Water
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Lubricants
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Antiseptics
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Acidic solutions
Correct Answer
A. AntisepticsExplanation
After tweezing eyebrows, it is important to apply antiseptics as a solution. This is because tweezing can cause small cuts or openings in the skin, which can potentially lead to infections if not properly treated. Antiseptics help to kill or prevent the growth of bacteria, reducing the risk of infection and promoting healing. Applying antiseptics after tweezing can help keep the area clean, minimize the chances of any complications, and ensure proper eyebrow care.Rate this question:
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- 5.
During treatment, if blood spill, you should...
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Nothing
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Stop the service
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Continue treatment
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Tell client
Correct Answer
A. Stop the serviceExplanation
If blood spills during treatment, it is important to stop the service immediately. Blood spills can pose a risk of infection and should be handled with caution. Continuing the treatment without addressing the blood spill can further spread potential contaminants and put both the client and the service provider at risk. It is crucial to prioritize the safety and well-being of everyone involved by stopping the service, properly cleaning and disinfecting the area, and ensuring a safe environment before continuing.Rate this question:
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- 6.
The purpose of a disposable spatula is for...
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Applying
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Ease & sanitation
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Spreading
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Nothing
Correct Answer
A. Ease & sanitationExplanation
A disposable spatula is designed to provide ease and promote sanitation. Unlike reusable spatulas, disposable spatulas can be easily disposed of after use, eliminating the need for cleaning and reducing the risk of cross-contamination. This makes them convenient and hygienic for various applications, such as spreading creams or mixing ingredients in the food industry, applying skincare products in beauty salons, or even for medical purposes. The disposable nature of the spatula ensures a hassle-free and sanitary experience for users.Rate this question:
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- 7.
During disincrustation, what type of solution is applied to the face?
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Acid
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Alkaline
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Dishwater
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Citrus
Correct Answer
A. AlkalineExplanation
During disincrustation, an alkaline solution is applied to the face. This is because alkaline solutions have the ability to break down and dissolve oil, dirt, and other impurities that may be clogging the pores. The alkaline solution helps to cleanse the skin and remove any buildup, leaving the face feeling refreshed and rejuvenated.Rate this question:
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- 8.
Emulsion will separate into layers without...
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Binder
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Mitosis
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Water
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Moisturizer
Correct Answer
A. BinderExplanation
Emulsion refers to a mixture of two or more immiscible substances, such as oil and water, which are held together by a binder. The binder acts as a stabilizing agent, preventing the separation of the components into distinct layers. Without a binder, the emulsion would not be able to maintain its stability, causing the oil and water to separate into distinct layers. Therefore, the absence of a binder would result in the separation of the emulsion into layers.Rate this question:
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- 9.
What is the largest organ in the body?
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Bladder
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Skin
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Stomach
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Large intestines
Correct Answer
A. SkinExplanation
The correct answer is skin. The skin is the largest organ in the body, covering the entire external surface. It serves as a protective barrier against external elements, regulates body temperature, and helps in the synthesis of Vitamin D. The skin also contains various sensory receptors that allow us to feel touch, pressure, heat, and pain.Rate this question:
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- 10.
What is the most important reason for the regular use of hygiene in the spa?
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Its builds customer confidence
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It helps the shop look better
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It maximizes financial profits
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It avoids the spread of infection
Correct Answer
A. It avoids the spread of infectionExplanation
Regular use of hygiene in the spa is important to avoid the spread of infection. Maintaining proper hygiene practices such as cleaning and disinfecting tools, equipment, and surfaces helps prevent the transmission of harmful bacteria, viruses, and other pathogens. This is crucial in a spa environment where clients come into close contact with various surfaces and equipment. By implementing good hygiene practices, the spa can ensure the safety and well-being of its customers, reducing the risk of infections and promoting a healthy environment.Rate this question:
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- 11.
What is the function of sebum?
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To dry the skin
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To cool the skin
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To cleanse the skin
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To lubricate the skin
Correct Answer
A. To lubricate the skinExplanation
Sebum is an oily substance produced by the sebaceous glands in the skin. Its main function is to lubricate and moisturize the skin and hair. It helps to keep the skin soft and supple by preventing excessive drying. Sebum also plays a role in protecting the skin from external factors such as bacteria and fungi. It forms a protective barrier on the skin's surface, preventing moisture loss and maintaining the skin's natural pH balance. Therefore, the correct answer is "to lubricate the skin."Rate this question:
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- 12.
What is the function of sweat?
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To dry the skin
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To cool the skin
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To cleanse the skin
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To lubricate the skin
Correct Answer
A. To cool the skinExplanation
Sweat is produced by the sweat glands in our skin and its main function is to cool the body. When we sweat, the moisture on our skin evaporates, which helps to dissipate heat from our body and regulate our body temperature. This is why we often sweat more when we are hot or during physical activity, as it helps to cool us down. Therefore, the correct answer is "to cool the skin".Rate this question:
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- 13.
Another word for Effectiveness
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Diagnosis
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Efficacy
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Contraindication
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Bacterial
Correct Answer
A. EfficacyExplanation
Efficacy is another word for effectiveness. It refers to the ability of something, such as a treatment or intervention, to produce the desired or intended result. In this context, it means that something is successful in achieving its intended purpose or desired outcome. Therefore, efficacy is the correct answer as it is synonymous with effectiveness.Rate this question:
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- 14.
Round shaped bacteria that appears singly (alone) or in groups.
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Bacteria
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Cocci
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Bacilli
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Allergy
Correct Answer
A. CocciExplanation
Cocci are round-shaped bacteria that can appear either singly or in groups. They are usually found in clusters or chains and can be identified by their spherical shape. Cocci bacteria can cause various infections in humans, such as strep throat or pneumonia. They can also be responsible for skin infections and urinary tract infections. Therefore, the correct answer for this question is Cocci.Rate this question:
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- 15.
Disinfectants used in the salon must be:
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Bactericidal.
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Fungicidal.
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Virucidal.
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All of these answers are correct.
Correct Answer
A. All of these answers are correct.Explanation
The correct answer is that all of these answers are correct. Disinfectants used in the salon must be bactericidal, meaning they are effective against bacteria. They must also be fungicidal, meaning they are effective against fungi. Additionally, they must be virucidal, meaning they are effective against viruses. Therefore, all three of these properties are necessary for a disinfectant to be suitable for use in a salon.Rate this question:
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- 16.
Which of the following is NOT a sign of inflammation?
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A cold spot on the skin
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Redness
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Swelling
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Pain
Correct Answer
A. A cold spot on the skinExplanation
A cold spot on the skin is not a sign of inflammation because inflammation is characterized by redness, swelling, and pain. Inflammation is a response of the immune system to injury or infection, and it is typically accompanied by increased blood flow to the affected area, resulting in redness and warmth. Swelling occurs due to the accumulation of fluid and immune cells in the area. Pain is often present due to the release of chemicals that stimulate nerve endings. However, a cold spot on the skin would suggest reduced blood flow, which is not consistent with inflammation.Rate this question:
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- 17.
Sterilization:
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Destroys most, but not all, bacteria.
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Destroys spores.
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Is commonly performed in salons.
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Is done through the use of a disinfectant.
Correct Answer
A. Destroys spores.Explanation
Sterilization is a process that aims to eliminate all forms of life, including bacteria, viruses, and spores. While it is true that sterilization destroys most bacteria, the key distinction is that it also effectively destroys spores. Spores are a dormant form of certain microorganisms that are highly resistant to environmental conditions and disinfectants. Therefore, the ability of sterilization to destroy spores is crucial in ensuring complete elimination of all potential sources of infection or contamination.Rate this question:
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- 18.
If there is an exposure incident, you must stop the service, put on gloves, and then do what next?
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Clean the injury with an antiseptic
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Clean your workstation.
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Bandage the cut
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Discard contaminated objects.
Correct Answer
A. Clean the injury with an antisepticExplanation
In the event of an exposure incident, it is important to prioritize the safety and well-being of the individual involved. After stopping the service and putting on gloves to protect oneself, the next step should be to clean the injury with an antiseptic. This is crucial to prevent any potential infection or further complications. Cleaning the injury will help minimize the risk of any harmful substances entering the body and promote proper healing.Rate this question:
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- 19.
Bacteria:
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Can exist only on nonporous surfaces.
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Are also known as microbes.
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Can be seen by the naked eye.
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All of these answers are correct.
Correct Answer
A. Are also known as microbes.Explanation
The given answer "are also known as microbes" is correct because bacteria are indeed a type of microbe. Microbes are microscopic organisms that include bacteria, viruses, fungi, and protozoa. Bacteria are single-celled microorganisms that can be found in various environments and have diverse shapes and sizes.Rate this question:
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- 20.
Sterilization:
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Destroys most, but not all, bacteria.
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Destroys spores.
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Is commonly performed in salons.
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Is done through the use of a disinfectant.
Correct Answer
A. Destroys spores.Explanation
Sterilization is a process that aims to eliminate all forms of microorganisms, including bacteria, viruses, and spores. While it is true that sterilization destroys most bacteria, the statement "destroys spores" is the most accurate explanation for the given answer. Spores are highly resistant structures produced by certain microorganisms that can survive harsh conditions and are difficult to eliminate. Sterilization methods such as autoclaving or the use of chemical agents like ethylene oxide are specifically designed to target and destroy spores, ensuring a complete eradication of microorganisms.Rate this question:
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- 21.
Who publishes the Universal Precautions?
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The FDA
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The FBI
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OSHA
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The EPA
Correct Answer
A. OSHAExplanation
OSHA (Occupational Safety and Health Administration) publishes the Universal Precautions. Universal Precautions are a set of guidelines aimed at preventing the transmission of bloodborne pathogens in the workplace. OSHA is responsible for ensuring safe and healthy working conditions for employees in the United States, and they have developed these precautions to protect workers from potential hazards related to bloodborne diseases. The FDA (Food and Drug Administration) is not responsible for publishing Universal Precautions, and neither are the FBI or the EPA.Rate this question:
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- 22.
If there is an exposure incident, you must stop the service, put on gloves, and then do what next?
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Clean the injury with an antiseptic
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Clean your workstation.
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Bandage the cut
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Discard contaminated objects.
Correct Answer
A. Clean the injury with an antisepticExplanation
In the event of an exposure incident, it is important to prioritize personal safety by stopping the service and putting on gloves. After ensuring protection, the next step is to clean the injury with an antiseptic. This helps to prevent any potential infection or further complications.Rate this question:
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- 23.
What can OSHA or state board inspectors do if a salon does not have MSDSs available for review during regular business hours?
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Immediately shut the salon down.
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Issue a fine to the salon.
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Immediately revoke the salon manager's license.
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Arrest and imprison the salon manager.
Correct Answer
A. Issue a fine to the salon.Explanation
If a salon does not have MSDSs (Material Safety Data Sheets) available for review during regular business hours, OSHA or state board inspectors have the authority to issue a fine to the salon. MSDSs provide important information about the potential hazards of chemicals used in the salon, and their absence could pose a risk to the health and safety of employees and customers. By issuing a fine, the inspectors can enforce compliance with regulations and encourage the salon to rectify the situation promptly. However, shutting down the salon immediately or revoking the salon manager's license would be disproportionate measures for this violation. Arrest and imprisonment are not within the authority of OSHA or state board inspectors in this scenario.Rate this question:
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- 24.
What is the papillary layer?
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Lower region of dermis
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Upper region of dermis
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Middle region of dermis
Correct Answer
A. Upper region of dermisExplanation
The papillary layer refers to the upper region of the dermis. It is located directly beneath the epidermis and is composed of loose connective tissue. This layer contains papillae, which are small projections that extend into the epidermis and help to increase surface area for nutrient exchange and sensory perception. The papillary layer also contains blood vessels, nerve endings, and lymphatic vessels.Rate this question:
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- 25.
When choosing a concealer which one of these is NOT correct?
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Yellow camouflages violet
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Green camouflages red
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Orange camouflages blue
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Blue camouflages yellow
Correct Answer
A. Blue camouflages yellowExplanation
Blue camouflages yellow is not correct because blue does not effectively hide or neutralize the color yellow. Yellow and blue are complementary colors, meaning they are opposite each other on the color wheel. Complementary colors do not cancel each other out, but rather create contrast when placed together. Green is the correct color to camouflage or neutralize red, as green is opposite red on the color wheel.Rate this question:
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- 26.
A Verruca is a
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Birthmark
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Wart
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Skin Tag
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Scab
Correct Answer
A. WartExplanation
A verruca is a type of wart. Warts are small, noncancerous growths on the skin that are caused by the human papillomavirus (HPV). Verrucas are specifically warts that appear on the soles of the feet. They can be painful and can spread to other areas of the body or to other people through direct contact. Treatment options for verrucas include over-the-counter medications, freezing, or other medical procedures to remove the wart.Rate this question:
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- 27.
A gland associated with a hair follicle
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Sebum
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Melanoma
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Sebaceous
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Mentalis
Correct Answer
A. SebaceousExplanation
A gland associated with a hair follicle is called a sebaceous gland. These glands are responsible for producing sebum, an oily substance that helps lubricate the hair and skin. Sebum helps to keep the hair and skin moisturized and also plays a role in protecting against bacteria and other harmful substances.Rate this question:
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- 28.
Dilated capillaries that can be seen beneath the surface of the skin
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Telangectasia
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Rytid
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Melanoma
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Nevus
Correct Answer
A. TelangectasiaExplanation
Telangectasia is the correct answer because it refers to dilated capillaries that can be seen beneath the surface of the skin. Telangectasia is a condition where the small blood vessels near the skin's surface become enlarged and visible, often appearing as red or purple lines or clusters. This condition can occur due to various factors such as sun damage, aging, hormonal changes, or certain medical conditions. It is commonly seen in areas like the face, neck, and legs.Rate this question:
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- 29.
Psoriasis appears as:
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Elevated nodules
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Loss of body hair
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A viral infection
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Scaly, red lesions
Correct Answer
A. Scaly, red lesionsExplanation
Psoriasis is a chronic autoimmune condition that affects the skin. It is characterized by the appearance of scaly, red lesions on the skin. These lesions are caused by the rapid buildup of skin cells, leading to inflammation and the formation of thick, silvery scales. This condition is not caused by a viral infection or associated with the loss of body hair. Therefore, the correct answer is "Scaly, red lesions."Rate this question:
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- 30.
What is a beneficial action of a clay mask?
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To deepen color
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To soften the skin
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To absorb impurities
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To increase temperature
Correct Answer
A. To absorb impuritiesExplanation
A clay mask is known for its ability to absorb impurities from the skin. When applied, the clay in the mask binds to dirt, oil, and other impurities on the skin's surface, drawing them out and leaving the skin feeling cleansed and refreshed. This action helps to unclog pores, reduce the appearance of blackheads and acne, and improve overall skin texture. Therefore, the beneficial action of a clay mask is to absorb impurities.Rate this question:
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- 31.
Which one of the following are open sores on tissue surfaces?
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Cysts
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Ulcers
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Polyps
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Nodules
Correct Answer
A. UlcersExplanation
Ulcers are open sores on tissue surfaces. They are characterized by a loss of the epithelial layer of the skin or mucous membrane, exposing the underlying tissues. Ulcers can occur in various parts of the body, such as the skin, mouth, stomach, or intestines. They are often painful and can be caused by factors like infection, injury, or underlying medical conditions like diabetes or vascular diseases. Treatment for ulcers may involve addressing the underlying cause, keeping the area clean, and using medications or dressings to promote healing.Rate this question:
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- 32.
What are sudoriferous glands?
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Oil Glands
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Endocrine Glands
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Ductless Glands
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Sweat Glands
Correct Answer
A. Sweat GlandsExplanation
Sudoriferous glands are sweat glands. These glands are responsible for producing sweat, which helps regulate body temperature by cooling the skin. Sweat glands are found all over the body, with the highest concentration in the palms, soles of the feet, and underarms. They are classified as exocrine glands because they release their secretions through ducts onto the surface of the skin.Rate this question:
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- 33.
A cosmecutical is:
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A cosmetic with therapeutic properties
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A manicure
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An ancient greek process of creating pigments
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Any spa treatment that includes cosmetics
Correct Answer
A. A cosmetic with therapeutic propertiesExplanation
A cosmecutical is a cosmetic with therapeutic properties. This means that it is a product that not only enhances the appearance but also provides some form of medical or healing benefits to the skin. Unlike regular cosmetics, which are purely for aesthetic purposes, cosmecuticals are formulated with active ingredients that can penetrate the skin and provide specific benefits such as anti-aging, hydration, or acne treatment. These products are often recommended by dermatologists and are considered a bridge between traditional cosmetics and pharmaceutical products.Rate this question:
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- 34.
Camouflage Therapy is:
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A makeup technique in which cosmetic colors are blended with the client's natural tones
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A technique for hiding facial scarring or congential defects
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A technique to help medical estheticians develop their color sense
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An Egyptian art involving kohl, a silver-white, metallic substance
Correct Answer
A. A technique for hiding facial scarring or congential defectsExplanation
Camouflage Therapy is a technique used to hide facial scarring or congenital defects. This technique involves using makeup to blend cosmetic colors with the client's natural tones, effectively concealing any visible imperfections. It is a method that aims to improve the appearance and boost the confidence of individuals who may feel self-conscious about their facial scars or congenital defects.Rate this question:
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- 35.
____________ destroys disease causing germs
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Leucocytes
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Red corpuscles
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Thrombocytes
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Plasma
Correct Answer
A. LeucocytesExplanation
Leucocytes, also known as white blood cells, are responsible for destroying disease-causing germs in the body. They are a crucial part of the immune system and play a vital role in fighting off infections and diseases. Leucocytes are able to recognize and target foreign invaders, such as bacteria or viruses, and eliminate them through various mechanisms, including phagocytosis and the release of antimicrobial substances. Their ability to destroy germs helps to protect the body from potential harm and maintain overall health.Rate this question:
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- 36.
The _____________ forms the forehead.
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Parietal bone
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Temporal bone
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Occipital bone
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Frontal bone
Correct Answer
A. Frontal boneExplanation
The frontal bone forms the forehead.Rate this question:
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- 37.
The lower chambers of the heart:
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Valves
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Ventricles
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Atrium
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Arteries
Correct Answer
A. VentriclesExplanation
The lower chambers of the heart are called ventricles. The heart has four chambers: two atria (upper chambers) and two ventricles (lower chambers). The ventricles are responsible for pumping blood out of the heart to the rest of the body. They have thicker walls compared to the atria, as they need to generate enough force to push the blood through the arteries and circulate it throughout the body.Rate this question:
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- 38.
Which system purifies the body through eliminating waste matter?
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Autonomic system
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Lymphatic system
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Digestive system
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Excretory system
Correct Answer
A. Excretory systemExplanation
The excretory system is responsible for eliminating waste matter from the body. It includes organs such as the kidneys, bladder, and urethra, which work together to remove waste products, excess water, and toxins from the bloodstream. The excretory system plays a vital role in maintaining the body's overall balance and homeostasis by filtering and eliminating waste materials through urine production.Rate this question:
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- 39.
Which of the following do blood vessels include?
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Arteries
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Capillaries
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Veins
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All of the above
Correct Answer
A. All of the aboveExplanation
Blood vessels include arteries, capillaries, and veins. Arteries carry oxygenated blood away from the heart to the rest of the body. Capillaries are tiny blood vessels that connect arteries and veins, allowing for the exchange of nutrients, oxygen, and waste products between the blood and tissues. Veins carry deoxygenated blood back to the heart. Therefore, all of the options listed are correct as they are all types of blood vessels.Rate this question:
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- 40.
Select the preferred way to clean a glass electrode:
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With a disinfectant
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In an autoclave
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Wipe it with a solution of soap and water
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Completely immerses it into soapy water
Correct Answer
A. Wipe it with a solution of soap and waterExplanation
The preferred method to clean a glass electrode is to wipe it with a solution of soap and water. This approach is gentle enough to avoid damaging the delicate glass and sensitive components of the electrode while effectively removing contaminants. Using harsh chemicals, autoclaving, or fully immersing in soapy water can potentially damage the electrode or affect its accuracy and longevity.Rate this question:
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- 41.
The action of introducing solutions into the body tissues through the use of galvanic current is:
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Saponification
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Galvanization
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Phoresis
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Ion therapy
Correct Answer
A. PhoresisExplanation
Phoresis is the action of introducing solutions into the body tissues through the use of galvanic current. This process involves the movement of ions in the body, which helps to deliver the solutions to the desired areas. Saponification is the process of making soap, while galvanization refers to the application of a protective zinc coating to prevent corrosion. Ion therapy is a general term that encompasses various treatments using ions. Therefore, the correct answer is Phoresis.Rate this question:
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- 42.
What four cell types make up the epidermis, the protective outer layer of our skin?
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Keratinocytes, melanocytes, Langerhans, and Merkel's cells
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Collagen, elastin, fibroblast, mast cells
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Lymphocytes, adipocytes, macrophages, and microphages
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Corpuscles, hemidesmosomes, squamous cells, and epithelial cells
Correct Answer
A. Keratinocytes, melanocytes, Langerhans, and Merkel's cellsExplanation
Keratinocytes, melanocytes, Langerhans, and Merkel's cells are the four cell types that make up the epidermis, the protective outer layer of our skin. Keratinocytes are the most abundant cells in the epidermis and produce the protein keratin, which helps to form a protective barrier. Melanocytes produce melanin, the pigment that gives color to the skin and protects against UV radiation. Langerhans cells are immune cells that help to defend against pathogens. Merkel's cells are touch receptors that play a role in sensory perception. Together, these four cell types contribute to the overall function and protection of the epidermis.Rate this question:
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- 43.
What do nasal bones form?
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The occipital orifice
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Bridge of the nose
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Nostrils
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Obularis oris
Correct Answer
A. Bridge of the noseExplanation
The nasal bones form the bridge of the nose.Rate this question:
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- 44.
The magnify lamp/light is also known as:
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Woods lamp
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Prism
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Dipoter
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Loupe
Correct Answer
A. LoupeExplanation
The correct answer is Loupe because a loupe is a type of magnifying lamp or light that is commonly used in various fields such as jewelry making, watch repair, and dentistry. It is a small, handheld device that consists of a magnifying lens and a light source, allowing the user to see small details more clearly. The other options listed, such as Woods lamp, Prism, and Dipoter, do not accurately describe a magnifying lamp or light.Rate this question:
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- 45.
A direct and steady current having a positive and negative pole utilized during a facial is:
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Galvanic current
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High frequency current
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Tesla current
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Ionization
Correct Answer
A. Galvanic currentExplanation
Galvanic current is the correct answer because it is a direct and steady current that has positive and negative poles. It is commonly used during facials for various purposes such as deep cleansing, product penetration, and improving blood circulation. The positive pole is used for desincrustation, which helps to soften and remove impurities from the skin, while the negative pole is used for iontophoresis, which aids in the absorption of beneficial substances into the skin.Rate this question:
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- 46.
Preparing equipment in the treatment room includes:
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Emptying the steamer
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Folding towels
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Turning off wax warmers
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Preheating the steamers
Correct Answer
A. Preheating the steamersExplanation
Preheating the steamers is an essential step in preparing the equipment in the treatment room. This process ensures that the steamers reach the optimal temperature for their intended use. By preheating the steamers, it allows for a more efficient and effective treatment, as the steam will be readily available when needed. Additionally, preheating the steamers helps to ensure the comfort and safety of the clients, as they will not have to wait for the steamers to heat up during their treatment session.Rate this question:
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- 47.
In LED facial treatments, what is the RED light used for?
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Anti -aging
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Anti-bacterial
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Treat hyperpigmentation
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Soothes muscles
Correct Answer
A. Anti -agingExplanation
The RED light in LED facial treatments is used for anti-aging purposes. LED therapy using red light helps to stimulate collagen production, reduce fine lines and wrinkles, and improve skin elasticity. It penetrates deep into the skin, promoting cellular regeneration and improving overall skin texture and tone. By targeting aging signs, the red light helps in rejuvenating the skin and promoting a more youthful appearance.Rate this question:
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- 48.
A device that transforms direct current to alternating current it is a/an:
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Conductor
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Converter
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Insulator
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Rectifier
Correct Answer
A. ConverterExplanation
A device that transforms direct current to alternating current is called a converter. Unlike conductors, which are materials that allow the flow of electric current, and insulators, which prevent the flow of electric current, a converter specifically changes the type of current from DC to AC. Rectifiers, on the other hand, convert AC to DC. Therefore, the correct answer is converter.Rate this question:
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- 49.
_________ softens and emulsifies oil and blackheads in the follicles.
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Iontophoresis
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Ionization
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Desincrustation
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Cataphoresis
Correct Answer
A. DesincrustationExplanation
Desincrustation is the process of softening and emulsifying oil and blackheads in the follicles. It helps to unclog pores and remove impurities from the skin. Iontophoresis is a technique that uses an electric current to deliver medication into the skin, while ionization refers to the process of converting a substance into ions. Cataphoresis is a method that uses a positive electric current to deliver substances into the skin. Therefore, the correct answer is Desincrustation.Rate this question:
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