The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Answer8.0m;

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.

Amicroscope, because these cells are so small that you would not be able to see them, or what they attack without it.