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Multiple Roles in a Food Web

APES-KAELFQ

Which organism in the food web below is both a primary and secondary consumer?

US Geological Survey. "Chapter 14: Changes in Food and Habitats of Waterbirds." Figure 14.1. Synthesis of U.S. Geological Survey Science for the Chesapeake Bay Ecosystem and Implications for Environmental Management. USGS Circular 1316.

A

Tundra Swan.

B

Herbivorous Ducks.

C

Wading Birds.

D

Zooplankton.

E

Osprey.