Not quite sure but would say Archaebacteria with the most confidence... hope this helps good luck
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
Fungi act as decomposers on dead plants and animals so they don't vlog everything up! Hope this helps.
It eats away you muscle but your body makes it better