Question

practice it! in the following aquatic food chain, select the organism that is the secondary consumer. krill chinstrap penguin seal phytoplankton

Explanation:

In a food - chain, primary producers like phytoplankton are at the base. Primary consumers eat primary producers. Secondary consumers eat primary consumers. Krill are primary consumers that eat phytoplankton. Chinstrap penguins eat krill (primary consumers), so they are secondary consumers. Seals eat penguins (tertiary consumers in this context).

Answer:

chinstrap penguin