Do You Know Year 7 Biology?
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Do you know year 7 biology?
Questions and Answers
- 1.
Name three changes that a male's body will undertake in the next few years.
- A.
Hair growing more rapidly than before.
- B.
Puberty.
- C.
You will get into more fights.
- D.
Voice deepens.
- E.
You grow.
Correct Answer(s)
A. Hair growing more rapidly than before.
D. Voice deepens.
E. You grow.Explanation
The given answer correctly identifies three changes that a male's body will undergo in the next few years. Hair growing more rapidly than before is a common sign of puberty in males. Voice deepening is another characteristic change that occurs during puberty as the vocal cords lengthen and thicken. Lastly, "You grow" refers to the overall physical growth and development that males experience during adolescence.Rate this question:
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- 2.
The changes that occurto your body around 13 years old are called _________.
Correct Answer(s)
Puberty
puberty
puberty.
Puberty.Explanation
The changes that occur in the body around 13 years old are referred to as puberty. During this time, various physical and hormonal changes take place, including the development of secondary sexual characteristics, growth spurts, and the onset of menstruation in girls. It is a natural process that marks the transition from childhood to adolescence.Rate this question:
- 3.
An example of a mammal is:
- A.
Hawk.
- B.
Rainbow Trout.
- C.
Platypus.
- D.
Terantula.
- E.
A log.
Correct Answer
C. Platypus.Explanation
The correct answer is Platypus because it is a mammal. Mammals are warm-blooded vertebrates that have hair or fur, give birth to live young, and nurse their young with milk. The platypus is a unique mammal found in Australia that has a duck-like bill, lays eggs, and produces milk to feed its young. Unlike the other options listed, the platypus possesses all the characteristics of a mammal.Rate this question:
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- 4.
The Menstrual Cycle lasts how many days?
- A.
30
- B.
7
- C.
365
- D.
28
- E.
14
Correct Answer
D. 28Explanation
The menstrual cycle typically lasts for 28 days. This is the average duration, although it can vary from person to person. The cycle begins on the first day of menstruation and ends on the day before the next period starts. It involves the release of an egg from the ovaries, thickening of the uterine lining, and shedding of the lining if fertilization does not occur. Understanding the length of the menstrual cycle is important for tracking fertility and overall reproductive health.Rate this question:
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- 5.
The ____ let you breath.
Correct Answer
lungs
lung
Lungs
LungExplanation
The correct answer is "lungs" or "lung". The lungs are the organs responsible for the process of breathing. They allow oxygen to enter the body and carbon dioxide to be expelled.Rate this question:
- 6.
Name three main food types in a balanced diet.
- A.
MacDonalds.
- B.
Fibre.
- C.
Protein.
- D.
Chocoate.
- E.
Carbohydrates.
Correct Answer(s)
B. Fibre.
C. Protein.
E. Carbohydrates.Explanation
The three main food types in a balanced diet are fiber, protein, and carbohydrates. Fiber is essential for maintaining a healthy digestive system and preventing constipation. Protein is necessary for building and repairing tissues, as well as supporting the immune system. Carbohydrates provide energy for the body and should come from sources like whole grains, fruits, and vegetables. MacDonalds and chocolate are not considered main food types in a balanced diet.Rate this question:
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- 7.
The process by which plants make their food using sunlight, water, and carbon dioxide is called ____________.
Correct Answer(s)
photosynthesisExplanation
Photosynthesis is a process used by plants, algae, and certain bacteria to convert light energy, usually from the sun, into chemical energy stored in glucose (a sugar). During photosynthesis, plants take in carbon dioxide (CO2) from the air and water (H2O) from the soil. Using the energy from sunlight, they transform the CO2 and H2O into glucose and oxygen (O2). The glucose provides energy and the building blocks for growth, while the oxygen is released as a byproduct into the atmosphere. This process is crucial for life on Earth, as it is the primary source of oxygen and it forms the base of most food chains.Rate this question:
- 8.
Alcohol is bad for your body because: (1 or more answers)
- A.
It impares your mental capacity.
- B.
It makes you feel energetic.
- C.
It affects your liver.
- D.
It makes you angry.
Correct Answer(s)
A. It impares your mental capacity.
C. It affects your liver.
D. It makes you angry.Explanation
Alcohol is bad for your body because it impairs your mental capacity, acting as a depressant, affecting your liver, and making you angry. Alcohol consumption can lead to cognitive impairment, slowing down brain function and decision-making abilities. It is classified as a depressant because it slows down the central nervous system, causing relaxation and sedation. Long-term alcohol abuse can damage the liver, leading to conditions like cirrhosis. Additionally, alcohol can alter mood and behavior, increasing the likelihood of aggressive or angry outbursts.Rate this question:
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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Apr 03, 2024Quiz Edited by
ProProfs Editorial Team -
Jun 30, 2009Quiz Created by
Jackharry
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