QUESTION 12
A community is the set of all ______ that inhabit a certain area.
ecosystems
biospheres
populations
none of the above
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QUESTION 13
Which of the following is an aquatic biome?
taiga
grassland
marine
none of the above
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QUESTION 14
Which of the following is a main type of community?
terrestrial
aquatic
both a and b
all of the above