A cell membrane has consists of phospholipids. They are lipids with a phosphate group such as (PO3/4). They are hydrophilic meaning that they allow water to pass through proteins well some at least- but it might be needed to move molecules throughnthe membrane as well. But basically it's just a composed bilayer of phospholipids with hydrophobic acid tails so that they could all meet with one another. The form complexes into function to describe or to identify the cells to anothers cells.
Hope this helps.
Binary fission is for reproduction of a cell by division into two equals parts
Your answer would be D. You can find the neutrons by subtracting the mass by the atomic number. 14-6=8 neutrons.
Reservoir is the answer to your question.
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