Does skin color generally become lighter or darker as you move more north or more south from the equator? Explain.
How does the strength of UV radiation change from the equator to the poles?
Develop a hypothesis explaining the relationship between UV radiation exposure and the amount of melanin deposition in a person’s skin
If a person has low UV radiation exposure, what health problems might he or she suffer from? What is the relationship between UV radiation exposure and insufficient Vitamin D levels?
If a person has high exposure to UV radiation, what health problems might he or she suffer from?
Based on the information above, where would skin pigments be darkest? Where would they be the lightest?
Based on the information provided in the graph and your answers to the questions above, reformulate your hypothesis regarding the relationship between UV exposure and the amount of melanin in a person’s skin.
Sample Solution