Answer:
That is the membrane of the cell
Explanation:
The cell membrane is made up of layers of protein and fat. It is made with a <em>phospholipid bilayer</em>. It allows some substances to pass into the cell while blocking others. This is known as <em>semipermeability</em>.
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The answer is B. Acid turns blue litmus paper to red
D, obviously. All living things are made of one or more cells, therefore non-living things aren’t made of cells
Answer:
n don't hv symmetry lines.
so the symmetry of n is 0
