I believe the answer would be Letter
B. Psychology
Okay the primary determining <span> factor would be the concentration.
Well, </span><span>Factors Affecting the Rate of Diffusion Size Small molecules can slip by </span><span><span>the polar heads of the phospholipids and through the membrane to the other side. </span> </span>
Answer:
as the blood pressure increases, the rate of blood flow decreases
Less physical waste, cleaner energy, less environmental effects, list goes on.
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