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 a tertiary consumer? select all that apply.the arrow between the salps and the emperor penguinthe arrow between the silverfish and the adélie penguinthe arrow between the copepod and the icefish

Explanation:

1. First, define the trophic levels:

• Producers: diatom, ice algae (make their own food)
• Primary consumers: krill, microzooplankton, copepod, polychaete worm (eat producers)
• Secondary consumers: salps, silverfish, icefish (eat primary consumers)
• Tertiary consumers: crabeater seal, emperor penguin, Adélie penguin (eat secondary consumers)

1. Evaluate each option:

• Salps (secondary) → emperor penguin (tertiary): Fits the requirement.
• Silverfish (secondary) → Adélie penguin (tertiary): Fits the requirement.
• Copepod (primary) → icefish (secondary): Does not fit, as it is primary to secondary.

Answer:

• the arrow between the salps and the emperor penguin
• the arrow between the silverfish and the Adélie penguin