Answer:
I have no clue buddy, look it up:)
Answer:
The 'cell membrane' also known as the plasma membrane or cytoplasmic membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells
Explanation:
Without concentration you can't have diffusion, because diffusion is basically the spreading out of molecules which are concentrated, or compacted.
Answer:
females it begins prior to birth, while in males, it begins after birth.
Explanation:
