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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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
The organisms isolated from hydrothermal vents are typically
A. phototrophs. B. chemolithoautotrophs. C. rhizobia. D. bacteroid. E. phototrophs, rhizobia AND bacteroid.
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
Which of the following is not a type of root?
A. tap B. fibrous C. adventurous D. branch E. lateral
Biology & Microbiology