Question

Below is a food web from an ocean ecosystem in Monterey Bay, off the coast of california.

Which two of the following arrows show matter moving from a primary consumer to a secondary consumer?

1. the arrow between the phytoplankton and the zooplankton

2. the arrow between the kelp and the sea urchin

3. the arrow between the zooplankton and the plainfin midshipman

4. the arrow between the sea otter and the orca

5. the arrow between the zooplankton and the kelp bass