<span>is unable to stand up or walk, even if assisted</span>
Answer: A) MD-104
Explanation:
it has the longest distance going in feet in a hot/dry climate
The answer is; the melanin in darkly pigmented skin protects DNA from UV radiation, and UV radiation can cause skin cancer
In Africa, due to its equatorial latitude location, receives direct sunlight at more or less 90 degrees most of the year. These highly concentrated rays increase the UV radiation exposure that can cause damage to cell DNA. Selection pressure, therefore, favored individuals with high melanin concentrations that protect against UV. Therefore population evolved towards high melanin densities in the skin.
I think it’s
C, decreased sources diversity
