Question

this food web is from an ocean ecosystem in the ross sea, off the coast of antarctica. which arrows show matter moving from a secondary consumer to tertiary consumer? select all that apply. the arrow between the copepod and the silverfish the arrow between the salps and the icefish the arrow between the krill and the adélie penguin

Explanation:

Step1: Identify consumer levels

In a food - web, primary consumers eat producers, secondary consumers eat primary consumers, and tertiary consumers eat secondary consumers.

Step2: Analyze organisms

Krill are primary consumers (eat phytoplankton like diatoms). Adelie penguins are secondary consumers (eat krill). The arrow from krill to Adelie penguin shows matter moving from a primary consumer to a secondary consumer, not from secondary to tertiary.
Salps are primary consumers (eat phytoplankton). Icefish are secondary consumers (eat salps). The arrow from salps to icefish shows matter moving from a primary consumer to a secondary consumer, not from secondary to tertiary.
Copepods are primary consumers (eat phytoplankton). Silverfish are secondary consumers (eat copepods). The arrow from copepods to silverfish shows matter moving from a primary consumer to a secondary consumer, not from secondary to tertiary.
So, none of the given arrows show matter moving from a secondary consumer to a tertiary consumer.

Answer:

None of the above (assuming there are no other options provided as the arrows given do not meet the criteria).