Answer: Clam get 5000 Kcal by eating the plankton
Explanation:
In any food chain the amount of energy transferred to the successive trophic level is ten percent of the energy available at the previous trophic level.
Here, manta ray gets 50 kcal of energy by eating the starfish
The amount of energy contained in star fish is equal to Kcal
Now Starfish gets its energy from clam.
Therefore total energy in clam is equal to
Therefore, clam get 5000 Kcal by eating the plankton
