Answer:
The changing variables are: v and KE
Explanation:
Given

Required: What changes?
From the formula above:



m: The mass of the skater is constant.
v: Moving up and down the track may change the velocity of the skater.
KE: When velocity changes, the kinetic energy also changes
So:
The changing variables are: v and KE
ATP can't store large amounts of energy for long periods of time.
Answer:A
Explanation:it makes sense
Showing the strength of the bones and the muscles and bones around it.