Tuna are predatory fish that consume smaller,carnivorous fish that have fed on zooplankton.The zooplankton had fed on phytoplankton.When a human eats tuna,that person is the ________ trophic level of the food chain.

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Humans eating tuna are at the fifth trophic level: 1) phytoplankton, 2) zooplankton, 3) smaller carnivorous fish, 4) tuna, 5) humans.

Tuna Are Predatory Fish That Consume Smaller,carnivorous Fish That Have