?

AP® Environmental Science

Free Version

Upgrade subject to access all content

Easy

Food Web Primary Consumer

APES-V8YTOY

Based on this food web, which organism would be identified as a primary consumer?

"USGS Circular 1316 Chapter 14: Changes in Food and Habitats of Waterbirds." USGS Circular 1316 Chapter 14: Changes in Food and Habitats of Waterbirds. United States Geological Survey, n.d. Web. 23 Mar. 2016. http://pubs.usgs.gov/circ/circ1316/html/circ1316chap14.html.

A

Large piscivorous fish.

B

Osprey.

C

Tundra Swan.

D

Phytoplankton.

E

Geese.