Answer: phytoplankton
Explanation: shrimp and krill are primary consumers. Primary consumers rely on producers for food. Phytoplankton are producers.
I think it B. but I don't know if its correct or not.
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I see you got this from k12 too.
I believe the answer would be D. They create a temporary higher crest
Answer:
D. G: 50% RR, 50% Rr P: all red cows
Explanation: