Automatically region nervous system
Answer:
I think the answer is determining infectivity of a virus
Explanation:
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The answer is centrioles.
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They are sandwiched between two layers of heads. Recall that the heads are hydrophilic therefore they will always be on the outside and the tails are hydrophobi therefore they willl always be away from water, there fore sandwiched. I'm a bio major, hope I helped :)
Answer:
All plants remain rigid because of cell walls.
Explanation: