Surface area to volume ratio Quiz
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5 questions, one answer each
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1. A cube has sides of 3 cm. What is its surface area to volume ratio?
- A. 2 : 1
- B. 3 : 1
- C. 6 : 1
- D. 9 : 1
2. What happens to the surface area to volume ratio as an organism gets larger?
- A. It increases
- B. It stays the same
- C. It decreases
- D. It depends on the shape only
3. Why do small mammals have a high metabolic rate per gram?
- A. They have a small surface area to volume ratio
- B. They lose heat quickly across a large relative surface
- C. They produce no heat
- D. They have thick fur
4. Which is a development in large organisms that overcomes a small surface area to volume ratio?
- A. A circulatory system to carry oxygen to cells
- B. A shorter diffusion distance from a thicker body
- C. Smaller cells
- D. Fewer respiring cells
5. Which animal is most likely to have large thin ears?
- A. One from a cold climate with a small SA:V
- B. One from a hot climate that needs to lose heat
- C. One that lives underground
- D. One that is single-celled