Question

which organism would be considered a tertiary consumer?
clownfish
scallop
whale

Explanation:

A tertiary consumer is a carnivore that eats secondary consumers. In the given food chain, the whale is the top - level consumer. Seaweed and phytoplankton are producers. Red crab and scallop are primary consumers (herbivores). The whale would eat the red crab (a secondary consumer if we assume a more complex chain where the red crab is eaten by the whale).

Answer:

whale