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 primary consumer to an omnivore? select all that apply. the arrow between the microzooplankton and the copepod the arrow between the diatom and the microzooplankton the arrow between the microzooplankton and the krill

Explanation:

Step1: Identify primary consumers

Primary consumers eat producers. In this food - web, diatom and ice - algae are producers. Microzooplankton, copepod, krill are primary consumers as they eat producers.

Step2: Identify omnivores

Omnivores eat both plants and animals. Krill can be considered an omnivore as it may consume both phytoplankton (like diatom) and other small organisms. Copepod also feeds on a variety of organisms including phytoplankton and small zooplankton.

Step3: Check the arrows

The arrow between microzooplankton and copepod shows matter moving from a primary consumer (microzooplankton) to an omnivore (copepod). The arrow between microzooplankton and krill shows matter moving from a primary consumer (microzooplankton) to an omnivore (krill). The arrow between diatom and microzooplankton is from a producer to a primary consumer, not from a primary consumer to an omnivore.

Answer:

the arrow between the microzooplankton and the copepod, the arrow between the microzooplankton and the krill