D. glycolysis
19. which statement mainly explains why even well-conditioned athletes have to pace
themselves for athletic events that last several hours?
a. stored atp
b. alcoholic fermentation,
c. lactic acid fermentation,
d. cellular respiration.

The third answer choice because a wise man once said third time's a charm, and in our society we don't disrespect boomers.

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .