People with lighter skin tones are mostly from Europe. What evolutionary advantage did light skin offer?

a. The ability to process Niacin through the skin.
b. The ability to avoid skin cancer in cold climates.
c. The ability to process vitamin D from The sun.
d. The ability to process sodium through bathing in salt water.

Which of the following describes research that would be considered basic science? a. a farmer is trying to improve his crop yields by using a new kind of fertilizer. b. a college students is curious about the growth of desert pants in the presence of excess amounts of water. c. government officials are trying to prevent the spread of new strain of influenza virus. d. a doctor is trying to determine why a patient is feeling tried and sick.b.a college students is curious about the growth of desert pants in the presence of excess amount of water