Question

the biology of skin color
name
this handout supplements the short film the biology of skin color.

1. true / false. biologists classify specific forms of traits as good or bad. for example, long tails in cats could be classified as good and short tails as bad.
2. explain the reasoning or evidence you used to answer question 1.
3. if you travel north from the equator, what generally happens to the intensity of ultraviolet (uv) light? a. the intensity increases. b. the intensity decreases. c. the intensity stays the same. d. it is impossible to predict.
4. who would you expect to be most at risk for developing the bone disease rickets? a. children born to mothers with dark skin, living far from the equator b. adults with dark skin who live close to the equator c. children born to mothers with light skin, living close to the equator d. adults with light skin who live close to the equator e. anyone who eats a diet that includes a lot of fish
5. explain the reasoning or evidence you used to answer question 4.
6. when dr. nina jablonski describes her discovery of the uv data collected by nasa, a headline is visible that reads, \ozone depletion raising risk of skin cancer, scientist says.\ use this headline and your understanding of what causes skin cancer to infer a beneficial feature of the ozone layer for humans. why would a depleted ozone layer increase the risk of skin cancer?
7. ultraviolet light can cause mutations and other damage within cells, which can hurt an individuals chance of surviving and leaving offspring. some molecules can protect cells from damage by uv. the amount of these molecules is determined by genes. within a population, some individuals make more of these uv - protection molecules than others.

Explanation:

1. Biologists do not classify traits as good or bad in a moral - sense. Traits are evaluated based on their adaptiveness in a given environment. So the answer to question 1 is False.
2. For question 3, as one travels north from the equator, the intensity of UV light generally decreases due to the angle of the sun's rays and the increased distance the UV has to travel through the atmosphere. So the answer is b.
3. For question 4, children born to mothers with dark skin, living far from the equator are most at risk for rickets. Dark - skinned individuals in low - UV areas have less ability to produce vitamin D from sunlight, and vitamin D is crucial for bone health in children. So the answer is a.
4. For question 6, the ozone layer absorbs a significant amount of the sun's UV radiation. A depleted ozone layer would allow more UV radiation to reach the Earth's surface. Since UV radiation is a known carcinogen, it increases the risk of skin cancer.

Answer:

1. False
2. The reasoning is that traits are evaluated based on adaptiveness, not moral goodness or badness.
3. b. The intensity decreases.
4. a. Children born to mothers with dark skin, living far[SSE Completed, Client Connection Error][SSE Completed, Client Connection Error][SSE Completed, Client Connection Error][LLM SSE On Failure]