Question Detail
Question
A structural adaptation in humans noted in the slides is skin pigmentation driven by melanin levels. This melanin variation is primarily a response to:
Correct Answer
Option C is the correct answer.
Detailed Explanation
Melanin pigmentation in human skin is a structural adaptation to UV radiation exposure. Populations near the equator have darker skin (more melanin) to protect against UV damage, while populations at higher latitudes have lighter skin to facilitate vitamin D synthesis in lower UV conditions.
Hint
This pigment protects against damage from solar radiation.