an ocean food chain is shown. which organism is a tertiary consumer? clownfish brittle star killer whale…

Brief Explanations:

Tertiary consumers are at the fourth - trophic level. In this food chain, kelp is a producer, brittle star is a primary consumer (eats producer), clownfish is a secondary consumer (eats primary consumer), and killer whale eats the octopus (a secondary consumer), making it a tertiary consumer.

Answer:

killer whale