All of the following apply to medications except:
a. may require a prescription
b. can be sold over the counter
c. are not regulated by the fda
d. require evidence of effectiveness

What are your best tips for staying focused and staying on task to finish something?

Who is responsible for regaulating noise pollution

Melanocytes and keratinocytes work together in protecting the skin from uv damage when keratinocytes a. provide the melanocyte with a protective shield against abrasion b. maintain the appropriate temperature so the product of the melanocyte will not denature c. maintain the appropriate ph in order for the melanocyte to synthesize melanin granules d. accumulate the melanin granules on their superficial portion, forming a uv-blocking pigment layer