-Bonnie has an aquarium filled with water, plants, and fish that eat those plants. It is sealed so no material can get in or out, but the glass sides allow light to get in. The aquarium can also be
covered to prevent light from entering.
The amount of carbon in the water started out low. Now, the amount of carbon in the water is
increasing. Is the aquarium now in light or is it covered? What is happening to the number of
energy storage molecules in the living things?