Laboratory Animal Final Exam Quiz

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  • 1/93 Questions

    If a nonhuman primate is going to be restrained for a long period of time, they should be allowed an hour of unrestricted activity for a continuous hour.

    • True
    • False
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About This Quiz

We've prepared here an interesting 'Laboratory animal final exam quiz' for you. Take this quiz and test your knowledge about different types of animals. With this test, we will ask you simple questions related to the animal kingdom. All you have to do is pick the correct option for every question. So, are you ready? Let's start the quiz then.
Wishing you good luck.

Laboratory Animal Final Exam Quiz - Quiz

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  • 2. 

    Ich is a protozoa of which fish?

    • Fresh water

    • Salt water

    Correct Answer
    A. Fresh water
    Explanation
    Ich, also known as Ichthyophthirius multifiliis, is a protozoan parasite that commonly affects freshwater fish. It causes a disease called Ichthyophthiriasis, or commonly known as "Ich." This parasite is not typically found in saltwater environments. Therefore, the correct answer is fresh water.

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  • 3. 

    What breed of rabbit is most popular for use in research?

    • English Lop

    • French Lop

    • New Zealand White

    • Flemish Giant

    Correct Answer
    A. New Zealand White
    Explanation
    New Zealand White rabbits are the most popular breed for use in research due to their docile nature, ease of handling, and availability. They are commonly used in a variety of research fields, including toxicology, pharmacology, and genetics. Their white fur color also makes it easier to observe any changes or abnormalities during experiments.

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  • 4. 

    Gills consist of structures called:

    • Follicles

    • Corpuscles

    • Filaments

    • Tendrils

    Correct Answer
    A. Filaments
    Explanation
    Gills consist of structures called filaments. Filaments are thin, finger-like projections found in the gills of aquatic organisms. These structures increase the surface area of the gills, allowing for more efficient exchange of gases, such as oxygen and carbon dioxide, between the organism and the surrounding water.

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  • 5. 

    The greatest number of ______________ monkeys are used in research

    • Baboons

    • Cebus

    • Macaque

    • Marmoset

    Correct Answer
    A. Macaque
    Explanation
    Macaque monkeys are commonly used in research due to their close genetic similarity to humans, making them valuable for studying various diseases and testing potential treatments. They are also known for their adaptability, ease of handling, and availability, making them a preferred choice for research purposes. Baboons, cebus, and marmosets may also be used in research, but macaques are considered the greatest in number for research studies.

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  • 6. 

    Dystocia is common in guinea pigs. True or false?

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Dystocia, or difficulty in giving birth, is indeed common in guinea pigs. This can be due to various factors such as the large size of the pups in relation to the mother's birth canal, improper positioning of the pups, or other complications. It is important for guinea pig owners to be aware of the signs of dystocia and seek veterinary assistance if necessary to ensure the health and well-being of both the mother and her offspring.

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  • 7. 

    If a macaw came into your clinic with a suspected case of Psittacosis, what color would you expect the urates to be?

    • White

    • Lime green

    • Brown

    • Red

    Correct Answer
    A. Lime green
    Explanation
    Psittacosis is a bacterial infection that commonly affects parrots, including macaws. One symptom of this infection is a change in the color of the urates, which are the solid waste products excreted by birds. Normally, urates should be white in color. However, in cases of Psittacosis, the urates can turn lime green due to the infection. Therefore, if a macaw came into the clinic with a suspected case of Psittacosis, we would expect the urates to be lime green.

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  • 8. 

    How do you treat Psittacosis (also known as Chlamydiosis)?

    • Doxycycline

    • Ampicillin

    • Prednisone

    • Imidazole

    Correct Answer
    A. Doxycycline
    Explanation
    Doxycycline is the correct treatment for Psittacosis, also known as Chlamydiosis. Psittacosis is a bacterial infection caused by the bacterium Chlamydia psittaci. Doxycycline is a broad-spectrum antibiotic that effectively kills the bacteria and helps in treating the infection. It is the preferred choice of treatment for Psittacosis due to its effectiveness in targeting the specific bacteria responsible for the infection. Ampicillin, prednisone, and imidazole are not suitable treatments for Psittacosis and may not effectively eliminate the bacteria causing the infection.

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  • 9. 

    What Vitamin needs to be supplemented in a Guinea Pig's diet?

    • A

    • C

    • D

    • K

    Correct Answer
    A. C
    Explanation
    Without enough, they can get Scurvy!

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  • 10. 

    What effect, if any, does lactation have on gestation period of a gerbil?

    • No effect, same gestation length

    • Gestation length is longer

    • Gestation length is shorter

    Correct Answer
    A. Gestation length is longer
    Explanation
    lactation delays implantation

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  • 11. 

    Does the Animal Welfare Act mandate that you provide environment enrichment to nonhuman primates used in research?

    • Yes

    • No

    • No, but you should anyway

    Correct Answer
    A. Yes
    Explanation
    The Animal Welfare Act does mandate that environment enrichment be provided to nonhuman primates used in research. This is important for their welfare and well-being, as it helps to stimulate their natural behaviors and prevent boredom or stress. Providing enrichment can include things like toys, puzzles, social interactions, and opportunities for physical exercise.

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  • 12. 

    Using a rat instead of a cat would be an example of:

    • Reduction

    • Refinement

    • Replacement

    • Recycling

    Correct Answer
    A. Replacement
    Explanation
    Using a rat instead of a cat would be an example of replacement. In this scenario, the cat is being replaced with a rat for a specific purpose or task. This could be due to various reasons such as cost, availability, ethical considerations, or practicality. Replacement involves substituting one thing or entity with another that serves a similar function or purpose.

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  • 13. 

    Which herpes virus causes fever blisters in humans?

    • Saimiriine herpesvirus 1

    • Herpes simplex virus

    • Ateline herpesvirus

    • Macacine herpesvirus 1

    Correct Answer
    A. Herpes simplex virus
    Explanation
    The correct answer is Herpes simplex virus. Herpes simplex virus is the main cause of fever blisters, also known as cold sores, in humans. It is a highly contagious virus that can be transmitted through direct contact with an infected person or through sharing personal items such as utensils or towels. Fever blisters typically appear as small, fluid-filled blisters on or around the lips, and can be accompanied by symptoms such as tingling or burning sensations. While there are other herpes viruses that can infect humans, such as Saimiriine herpesvirus 1, Ateline herpesvirus, and Macacine herpesvirus 1, they are not specifically associated with causing fever blisters in humans.

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  • 14. 

    Poxviruses are self-limiting and only epidermal changes are seen.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Poxviruses are a group of viruses that typically cause self-limiting infections, meaning that they resolve on their own without treatment. These infections primarily affect the skin, resulting in characteristic epidermal changes such as skin lesions or rashes. Therefore, it is true that only epidermal changes are seen in poxvirus infections.

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  • 15. 

    When a male mouse is introduced to a group of females and they begin to cycle, this is called

    • The Bruce effect

    • The Jude Law effect

    • The Alpha effect

    • The Whitten effect

    Correct Answer
    A. The Whitten effect
    Explanation
    The Whitten effect refers to the phenomenon where the introduction of a male mouse to a group of females causes them to synchronize their estrous cycles. This synchronization occurs due to the release of pheromones by the male, which influences the hormonal activity of the females. This effect is named after its discoverer, Dr. Whitten.

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  • 16. 

    If you feed a bird a seed only diet, which of the following is likely to occur?

    • Hypovitaminosis A

    • Calcium deficiency

    • Protein deficiency

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Feeding a bird a seed-only diet can lead to hypovitaminosis A, calcium deficiency, and protein deficiency. Seeds are not sufficient in providing all the essential nutrients that a bird needs for optimal health. Hypovitaminosis A can occur due to a lack of vitamin A in the diet, which is important for the bird's vision and immune system. Calcium deficiency can lead to weak bones and eggshell problems in birds. Protein deficiency can result in poor feather quality, muscle wasting, and overall weakness. Therefore, all of the above conditions are likely to occur if a bird is fed a seed-only diet.

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  • 17. 

    Which is the only lab animal species to have canines (excluding primates)?

    • Guinea Pigs

    • Rabbits

    • Hamsters

    • Ferrets

    Correct Answer
    A. Ferrets
    Explanation
    Ferrets are the only lab animal species, excluding primates, that have canines. Canines are long, pointed teeth that are used for tearing and gripping food. While guinea pigs, rabbits, and hamsters have different types of teeth, none of them have canines. Ferrets, on the other hand, have long, sharp canines that are used for catching and biting prey. Therefore, the correct answer is Ferrets.

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  • 18. 

    Pseudopregnancy is rare in rabbits.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Pseudopregnancy is not rare in rabbits. Pseudopregnancy, also known as false pregnancy, is a condition in which a female rabbit shows signs of being pregnant, such as nesting behavior and mammary gland development, even though she is not actually pregnant. This phenomenon is relatively common in rabbits and can occur due to hormonal imbalances or other factors. Therefore, the correct answer is False.

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  • 19. 

    What is the scientific name for gerbils?

    • Cava porcellus

    • Mustela putorious furo

    • Oryctolagus cuniculus

    • Meriones unguiculatus

    Correct Answer
    A. Meriones unguiculatus
    Explanation
    The scientific name for gerbils is Meriones unguiculatus. This is the correct answer because Meriones unguiculatus is the binomial name given to the Mongolian gerbil, which is the most common species of gerbil kept as a pet. The binomial name consists of the genus name (Meriones) and the species name (unguiculatus), which together uniquely identify the species.

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  • 20. 

    Gerbil facial eczema is due to increased secretions of what gland?

    • Nasolacrimal

    • Harderian

    • Parotid

    • Submandibular

    Correct Answer
    A. Harderian
    Explanation
    The correct answer is harderian. Gerbil facial eczema is caused by increased secretions of the harderian gland. This gland is found in the eye socket and is responsible for producing tears and other secretions that help lubricate and protect the eyes. When there is an overproduction of these secretions, it can lead to inflammation and irritation of the skin around the face, resulting in facial eczema.

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  • 21. 

    You can treat guinea pig fleas with the same products you use on your cat

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Guinea pig fleas can be treated with the same products that are used on cats. This is because many flea treatments are designed to target and eliminate fleas across different species, including guinea pigs and cats. Therefore, it is safe and effective to use the same products on both animals to treat and prevent flea infestations.

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  • 22. 

    What is the life span of a gerbil's RBC?

    • 10 days

    • 50 days

    • 100 days

    • 150 days

    Correct Answer
    A. 10 days
    Explanation
    LOTS OF RETICULOCYTES

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  • 23. 

    The part of a fish that detects motion and vibration is:

    • Their whiskers

    • Their fins

    • The vertical line

    • The lateral line

    Correct Answer
    A. The lateral line
    Explanation
    The lateral line is a sensory organ found in fish that detects motion and vibration in the water. It is a series of small sensory organs called neuromasts that are located along the sides of the fish's body. These neuromasts are sensitive to changes in water pressure, allowing the fish to detect movement and vibrations in its surroundings. This sensory system is crucial for fish to navigate their environment, detect prey, and avoid predators.

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  • 24. 

    What causes meliodiosis in primates?

    • Heliobacter pylori

    • Yersinia enterocolitica

    • Lawsonia intracellularis

    • Burkholderia pseudomallei

    Correct Answer
    A. Burkholderia pseudomallei
    Explanation
    Burkholderia pseudomallei is the correct answer because it is the causative agent of melioidosis, a disease that affects both humans and primates. This bacterium is commonly found in soil and water in tropical and subtropical regions, and can enter the body through inhalation, ingestion, or through open wounds. Once inside the body, it can cause a wide range of symptoms, including fever, pneumonia, abscesses, and septicemia. Melioidosis is particularly common in Southeast Asia and Northern Australia, where the bacterium is endemic.

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  • 25. 

    What is super duper important to know about Hymenolepsis nana?

    • It can go through your skin to infect you

    • It forms deadly cysts inside of you

    • It doesn't need an intermediate host.

    Correct Answer
    A. It doesn't need an intermediate host.
    Explanation
    Hymenolepsis nana is a parasite that infects humans, causing a condition known as hymenolepiasis. Unlike many other parasites, Hymenolepsis nana does not require an intermediate host to complete its life cycle. This means that it can directly infect humans without the need for another organism to facilitate transmission. This characteristic makes it unique and distinguishes it from other parasites that rely on intermediate hosts for their survival and reproduction.

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  • 26. 

    What type of rabies virus vaccine should be administered to nonhuman primates?

    • Modified Live

    • Killed

    Correct Answer
    A. Killed
    Explanation
    Nonhuman primates should be administered a killed rabies virus vaccine. This type of vaccine contains inactivated rabies virus particles, which are unable to cause infection but can stimulate the immune system to produce a protective response. Killed vaccines are considered safer for use in nonhuman primates as they do not carry the risk of causing disease. Modified live vaccines, on the other hand, contain a weakened form of the virus that can replicate in the body, potentially causing disease in immunocompromised individuals. Therefore, killed vaccines are the recommended choice for nonhuman primates.

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  • 27. 

    Yawning is an aggressive behavior.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Yawning is often associated with tiredness or boredom, but it can also be a sign of aggression. In some animal species, yawning is a display of dominance or a warning signal to potential threats. It can be seen as a way to intimidate or assert dominance over others. Therefore, considering yawning as an aggressive behavior is justified.

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  • 28. 

    What parasite causes malaria?

    • Plasmodium

    • Entamoeba histolytica

    • Dipetalonema

    • Oesaphogostomum

    Correct Answer
    A. Plasmodium
    Explanation
    Plasmodium is the correct answer because it is the parasite that causes malaria. Malaria is a life-threatening disease transmitted through the bite of infected female Anopheles mosquitoes. Plasmodium parasites infect and multiply within red blood cells, causing symptoms such as fever, chills, headache, and fatigue. There are several species of Plasmodium that can cause malaria in humans, including Plasmodium falciparum, Plasmodium vivax, Plasmodium malariae, and Plasmodium ovale. Proper diagnosis and treatment are crucial to prevent complications and reduce the spread of malaria.

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  • 29. 

    Where do you give IM injections in birds?

    • Into the thigh muscles

    • Into the wing

    • Into the pectoral muscles

    • Into the trapezius muscle

    Correct Answer
    A. Into the pectoral muscles
    Explanation
    In birds, IM injections are given into the pectoral muscles. These muscles are located in the chest area of the bird and are responsible for the movement of the wings. Administering injections into the pectoral muscles ensures that the medication is absorbed effectively into the bird's bloodstream. The pectoral muscles provide a suitable site for injection as they are easily accessible and have a good blood supply, allowing for efficient absorption of the medication.

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  • 30. 

    There is a vaccine for Avian Polyoma Virus.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because there is indeed a vaccine available for Avian Polyoma Virus. Avian Polyoma Virus is a contagious viral infection that affects birds, particularly young ones, and can cause severe illness and death. Vaccination is an effective preventive measure to protect birds from contracting the virus and developing the associated disease. The availability of a vaccine provides bird owners and breeders with a means to protect their birds and prevent the spread of Avian Polyoma Virus.

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  • 31. 

    Primates under what weight can be restrained manually?

    • 10 kg

    • 20 kg

    • 30 kg

    • You should always used mechanical and/or chemical restraint

    Correct Answer
    A. 10 kg
    Explanation
    Primates under 10 kg can be restrained manually. This means that primates weighing less than 10 kg can be physically controlled and restrained by human handlers without the need for additional tools or substances.

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  • 32. 

    Snuffles (rhinitis) is commonly caused by:

    • Pasteurella

    • Myxomatosis

    • Coccidiosis

    • Clostridium

    Correct Answer
    A. Pasteurella
    Explanation
    Snuffles, also known as rhinitis, is commonly caused by Pasteurella. Pasteurella is a type of bacteria that can infect the respiratory system of animals, including rabbits. It is a common cause of respiratory infections in rabbits and can lead to symptoms such as sneezing, nasal discharge, and difficulty breathing. Treatment typically involves antibiotics to target the Pasteurella bacteria and supportive care to alleviate symptoms. Other options listed, such as Myxomatosis, Coccidiosis, and Clostridium, are not typically associated with causing rhinitis or snuffles in rabbits.

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  • 33. 

    How many generations need to be inbred to create a genetically homogenous strain?

    • 10

    • 15

    • 20

    • 30

    Correct Answer
    A. 20
    Explanation
    To create a genetically homogenous strain, inbreeding is necessary to eliminate genetic variation. Inbreeding involves mating closely related individuals over several generations. As each generation progresses, the genetic diversity decreases, resulting in a more genetically uniform strain. Therefore, it would take approximately 20 generations of inbreeding to create a genetically homogenous strain.

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  • 34. 

    What are Poecilids? 

    • Egg-laying fish

    • Salt water fish

    • Fresh water fish

    • Live-bearing fish

    Correct Answer
    A. Live-bearing fish
    Explanation
    Poecilids are a type of fish that give birth to live young instead of laying eggs. They are known as live-bearing fish because the eggs develop and hatch inside the female's body, and the young are then born fully formed. This reproductive strategy allows for a higher survival rate of the offspring compared to egg-laying fish, as the young are more developed and better equipped to survive after birth.

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  • 35. 

    What is the correct order of the nitrogen cycle?

    • Feces/urine --> nitrite --> nitrate --> ammonia --> ammonium

    • Feces/urine --> ammonium --> nitrite --> ammonia --> nitrate

    • Feces/urine --> ammonium --> ammonia --> nitrite --> nitrate

    • Feces/urine --> ammonia --> ammonium --> nitrite --> nitrate

    Correct Answer
    A. Feces/urine --> ammonia --> ammonium --> nitrite --> nitrate
    Explanation
    converting toxic ammonia to ammonium (with nitrosomonas) creates toxic nitrite, which then must be converted to nitrate with nitrobacter

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  • 36. 

    Lipsmacking is an aggressive behavior.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement suggests that lipsmacking is an aggressive behavior. However, this is not true. Lipsmacking is a term used to describe the sound made by someone when they are enjoying their food or drink. It is not associated with aggression but rather with pleasure or satisfaction. Therefore, the correct answer is false.

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  • 37. 

    What is true about guinea pigs?

    • They can be very aggressive when threatened

    • They have a freeze or flight response

    • They have hair on the pinna

    • Multiple responses are correct

    Correct Answer
    A. They have a freeze or flight response
    Explanation
    Guinea pigs have a freeze or flight response, which means that when they feel threatened, they may either freeze in place or try to flee from the situation. This is a common instinctive behavior in many animals, including guinea pigs, as a way to protect themselves from potential harm.

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  • 38. 

    Where would you administer subcutaneous fluids to a bird?

    • Pectoral region

    • Axillary region

    • Scapular region

    Correct Answer
    A. Axillary region
    Explanation
    The axillary region is the correct answer because it is the area located near the bird's wing, specifically where the wing attaches to the body. Administering subcutaneous fluids in this region allows for easy absorption and distribution throughout the bird's body. The pectoral region refers to the chest area, while the scapular region refers to the shoulder blade area, neither of which are optimal for administering subcutaneous fluids to a bird.

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  • 39. 

    The pelvic symphysis will start to fuse in a guinea pig after what age? Also, if you're going to breed them, you should breed them by this age.

    • 6 months

    • 8 months

    • 1 year

    • 2 years

    Correct Answer
    A. 6 months
    Explanation
    The pelvic symphysis in a guinea pig starts to fuse at around 6 months of age. This fusion is a natural process that helps strengthen the pelvic region. If you are planning to breed guinea pigs, it is recommended to breed them before they reach 6 months of age, as after this age the pelvic symphysis becomes less flexible and may cause difficulties during childbirth.

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  • 40. 

    Which bacterial disease of guinea pigs can survive cool temperatures?

    • E coli

    • Clostridium perfringens

    • Pseudomonas aeruginosa

    • Listeria monocytogenes

    Correct Answer
    A. Listeria monocytogenes
    Explanation
    Listeria monocytogenes is a bacterial disease that can survive cool temperatures. This bacterium is known for its ability to grow and multiply at temperatures as low as 4 degrees Celsius, making it a significant concern in refrigerated and chilled foods. It is a common cause of foodborne illness and can pose a serious health risk, particularly for pregnant women, newborns, the elderly, and individuals with weakened immune systems. Therefore, Listeria monocytogenes is the correct answer for the given question.

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  • 41. 

    Besides Tyzzers, what other mouse disease can cause white foci on the liver?

    • Heliobacter

    • Pseudomonas

    • Sendai

    • Mouse Hepatitis Virus

    Correct Answer
    A. Mouse Hepatitis Virus
    Explanation
    Mouse Hepatitis Virus is the correct answer because it is a well-known mouse disease that can cause white foci on the liver. This virus primarily affects the liver and respiratory system of mice, leading to inflammation and damage. The white foci on the liver are a characteristic pathological finding in mice infected with Mouse Hepatitis Virus. Other options like Heliobacter, Pseudomonas, and Sendai are not known to cause white foci on the liver in mice.

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  • 42. 

    Rabbits differ from rats/mice/hamsters in that they are born with:

    • Fur

    • Ears open

    • Eyes open

    Correct Answer
    A. Ears open
    Explanation
    Rabbits differ from rats/mice/hamsters in that they are born with their ears open. This means that unlike rats, mice, and hamsters, rabbits are born with their ears fully developed and functional. This is an important characteristic as it allows newborn rabbits to immediately hear and respond to their environment, providing them with a better chance of survival.

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  • 43. 

    What is the most common disease of hamsters?

    • Wet Tail

    • Tyzzers

    • Antibiotic associated Enterotoxemia

    • Proliferative ileitis

    Correct Answer
    A. Wet Tail
    Explanation
    Wet Tail is the most common disease of hamsters. Wet Tail is a bacterial infection that affects the intestines of hamsters, causing symptoms such as diarrhea, lethargy, and a wet or dirty appearance around the tail area. It is often caused by stress, poor hygiene, or a change in diet. If left untreated, Wet Tail can be fatal for hamsters, so it is important to seek veterinary care if any symptoms are observed.

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  • 44. 

    What would the feathers of a bird with Psittacine beak and feather disease look like?

    • They would fall out easier/have alopecia

    • They would be discolored

    • They would be club shaped

    • They would be sticky

    Correct Answer
    A. They would be club shaped
    Explanation
    Feathers of a bird with Psittacine beak and feather disease would be club-shaped. This disease affects the feathers, causing them to become deformed and malformed. Instead of having a normal, smooth shape, the feathers would appear thickened and bulbous, resembling a club. This is a characteristic symptom of the disease and can help in identifying birds affected by it.

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  • 45. 

    What class of drugs causes antibiotic associated enterotoxemia in guinea pigs?

    • Cephalosporins

    • Tetracyclines

    • Penicillins

    • Aminoglycosides

    Correct Answer
    A. Penicillins
    Explanation
    Penicillins are a class of drugs that can cause antibiotic-associated enterotoxemia in guinea pigs. This condition refers to the overgrowth of certain bacteria in the gut, leading to the production of toxins that can cause gastrointestinal symptoms. While penicillins are effective antibiotics, they can also disrupt the normal balance of gut bacteria, allowing harmful bacteria to multiply. This can result in enterotoxemia, which can cause diarrhea, bloating, and other digestive issues in guinea pigs.

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  • 46. 

    What percent of households have an aquarium ?

    • 10%

    • 15%

    • 25%

    • 30%

    Correct Answer
    A. 15%
    Explanation
    The correct answer is 15%. This means that out of all the households, 15% of them have an aquarium.

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  • 47. 

    Why does ringtail occur in rats?

    • Too humid

    • Too dry

    • Fungus

    • Genetic mutation

    Correct Answer
    A. Too dry
    Explanation
    Ringtail is a condition that occurs in rats when the environment becomes too dry. This causes the skin on their tails to become dehydrated and lose its elasticity, leading to constricted blood flow and eventually the tail becoming necrotic. This condition is more likely to occur in environments with low humidity levels, as the lack of moisture in the air exacerbates the dehydration of the tail. Therefore, the correct answer is "Too dry".

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  • 48. 

    Which disease of primates would cause yellow caseous nodules on lungs and hilar lymph nodes?

    • Tuberculosis

    • Shigellosis

    • Yellow Fever

    • Meliodiosis

    Correct Answer
    A. Tuberculosis
    Explanation
    Tuberculosis is the correct answer because it is a disease that can cause yellow caseous nodules on the lungs and hilar lymph nodes. Tuberculosis is a bacterial infection caused by Mycobacterium tuberculosis, which primarily affects the lungs but can also spread to other parts of the body. The formation of yellow caseous nodules is a characteristic feature of tuberculosis infection, indicating the presence of necrotic tissue. Other diseases mentioned in the options do not typically cause these specific symptoms.

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  • 49. 

    What disease are rats asymptomatic carriers of, but it can cause hemorrhagic fever with renal syndrome in humans?

    • Murine Respiratory Mycoplasmosis

    • Leptospirosis

    • Hantavirus

    • Tyzzers

    Correct Answer
    A. Hantavirus
    Explanation
    Hantavirus is the correct answer because it is a disease that rats can carry without showing symptoms, but it can cause hemorrhagic fever with renal syndrome in humans. This virus is transmitted to humans through contact with infected rat urine, droppings, or saliva. It can lead to severe respiratory distress and kidney problems in humans, and in some cases, it can be fatal.

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Quiz Review Timeline (Updated): Mar 22, 2023 +

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 05, 2014
    Quiz Created by
    Angelaryan3
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