This is because the melanocytes are located in the stratum basale. Lighter-skinned people usually have low basal levels, and exposure to UV radiation causes an increase which makes skin darker.
All matter is composed of protons, neutrons, and electrons. Therefore the answer is sodium.
Photosynthesis reverses the biochemical pathways of respiration.
The reasons are many. The most major reason was the fact that they were outnumbered by the U.S.
