Question

this food web is from an ocean ecosystem in the ross sea, off the coast of antarctica. which of the following organisms eat a tertiary consumer in this food web? select all that apply. emperor penguin copepod krill

Explanation:

Step1: Identify tertiary consumers

Tertiary consumers are organisms that eat secondary consumers. In this food - web, we need to first find the secondary consumers and then the organisms that eat them.

Step2: Analyze each option

• Emperor penguin: It preys on animals like icefish. Icefish are secondary consumers in this food - web, so emperor penguin is a tertiary consumer. There are no organisms in the given options that eat emperor penguin.
• Copepod: It is a primary consumer that eats phytoplankton (like diatom). It is not an organism that eats a tertiary consumer.
• Krill: It is a primary consumer that eats ice algae and diatoms. It is not an organism that eats a tertiary consumer.

Since none of the given organisms eat a tertiary consumer, there are no correct answers among the options.

Answer:

None of the above