What's a normal blood pressure range?

When plants use sunlight to make food, the energy of sunlight is

How are fossils used to date organisms?

5. what might happen if you were to remove all light from the setup after the discs have all become buoyant? describe what you would see. explain why this would occur with relation to cellular processes like respiration. [referring to an ap biology lab in which spinach discs are placed in a sodium bicarbonate solution and exposed to light.]