Question

In a marine ecosystem, phytoplankton perform photosynthesis. Krill eat the phytoplankton, and seals, whales, and sea birds feed on the krill. Finally, great white sharks hunt and eat the seals. Which of these organisms are consumers?

Answer 1

b

Step-by-step explanation:

Answer 2

Except phytoplankton, all are consumers

Step-by-step explanation:

Consumers are those which directly or indirectly depends on autotrophs for food.

Here

Krill is primary consumers

Seals, whale, sea birds are 2° consumers and primary carnivores.

Shark is 3° consumer and 2° carnivore..or top carnivore