Answer:
Point Y
Explanation:
When the ball has the greatest potential energy, it has the most movement/it's at it's fastest. You can easily figure out these questions usually by picking the point that is lowest on these ramps. If two points are at the same level, pick the point that leads from the ball going down the steepest ramp.
I believe it's stem cells.
The correct answer should be B. CARBOHYDRATES
Dialysis performs the function of the kidneys if they've failed.
