If the same amount of force were applied to all four balls in the picture, which would experience the greatest change in motion?
a) 5kg
b) 10kg
c) 20kg
d)40kg

It is d, all the other ones say incorrect answer .

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.

Cardiac muscle causes movement in the bone.