What is most likely the amount of energy available at a trophic level of primary consumers if the amount of energy available to producers in that food web is 2,000 kilocalories?

Anything about the same as 2,000 kilocalories.

If the producers are plants / algae, and contain 2,000 kilocalories of energy, the primary consumers, which are the ones eating the plants / algae will obtain about the same amount of energy the producers originally have.

Hope it helped,

BioTeacher101

i am positive it is c. condensing but i may be wrong

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explanation: bc blah