Author Question: Studies have shown that UV radiation rapidly depletes ______, which plays a crucial role in neural ... (Read 129 times)

plus1 · **on:** Jul 10, 2018

Studies have shown that UV radiation rapidly depletes ______, which plays a crucial role in neural tube development of the embryo.

a. melanin
b. melanocytes
c. carotene
d. folate
e. omega 3

Question 2

Rickets is caused by

a. overexposure to ultraviolet radiation.
b. too much vitamin D.
c. an insufficient amount of melanin.
d. too few melanocytes.
e. insufficient amount of vitamin D.