The ratio of the productivity of one trophic level over what its organisms consume is known as

A) consumption efficiency.
B) trophic efficiency.
C) food chain efficiency.
D) detrital efficiency.


B

Biology & Microbiology

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Vibrio cholerae is most often associated with

A. breathing air. B. eating food. C. drinking water. D. touching animals

Biology & Microbiology

Which of the following would be most attractive to a female hummingbird? A mate protecting a territory with

A) many predators. B) many nectar feeding animals. C) many nectar bearing flowers. D) many other males.

Biology & Microbiology

Which of the following have chloroplasts (or structures since evolved from chloroplasts) thought to be derived from ancestral green algae?

A) stramenopiles B) apicomplexans C) dinoflagellates D) chlorarachniophytes

Biology & Microbiology

The immediate ancestors of the genus Homo belonged to which genus?

a. Pan b. Pongo c. Ardipithecus d. Sahelanthropus e. Australopithecus

Biology & Microbiology