Only the receiving team can score a point by winning a rally. Group of answer choices

True

False

During exercise, the oxygen concentration in the blood increases to twice that of resting levels. t or f

True or false mucous membranes destroy pathogens on the outer body surface, at body openings.

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