Help me with this assignment plz

Photosynthesis converts light energy to chemical energy. which molecules are the end product of this transformation of energy in this reaction?

What kind of seafood would you expect to have the highest levels of mercury and why? kelp, because they use the sun to photosynthesize on the bottom trophic level. oysters, because they filter feed on plankton on a lower trophic level. small fish, because they eat plankton on a higher trophic level. sharks, because they feed on organisms on a higher trophic level.

Select the word from the list that best fits the definition a system made of 25 satellites