All members of a species that reside within an ecosystem make up a(n)

A) ecotone. B) population. C) aggregation. D) community. E) trophic level.


B

Biology & Microbiology

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Which of the following is not a type of root?

A. tap B. fibrous C. adventurous D. branch E. lateral

Biology & Microbiology

The organisms isolated from hydrothermal vents are typically

A. phototrophs. B. chemolithoautotrophs. C. rhizobia. D. bacteroid. E. phototrophs, rhizobia AND bacteroid.

Biology & Microbiology

Movement of substances that requires the

expenditure of ATP molecules is

a. facilitated diffusion. b. simple diffusion. c. active transport. d. osmosis. e. bulk flow.

Biology & Microbiology

In the 1950s, the ____________ hypothalamus was thought to be a satiety centre.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology