The control center and director of cell activities is the nucleus. The nucleus, which holds all of the DNA, is found at the center of the cell.
It specifies what exactly the variations are of whatever population is being examined.
<span>Both of them are example of Passive transport and Passive processes; If that's the type of answer you are looking for.</span>
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I think it is 24 because it just is
I believe A because they have many cells
