Answer:
Osmosis don't require the cell to expend any of its own energy, as they are passive processes.
Explanation:
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Answer:
Organisms with hard parts such as a shell,or bones are much more likely to become fossilized than animals with soft parts like a worms.
Explanation:
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Answer:
B.
Explanation:
It isn't any of the others and the competitive exclusion principle talks about how two similar species cannot coexist under the same resources for long. I suppose you could conclude they were trying to fullfill the same niche, but only under the assumption of comp. exclusion. So just B.
