Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
Setting your own goals gives yourself a reason to have good feelings about yourself. by being worried about something of your own, it can become more positive for you.
Answer: C: Abstinence allows you to wait until you are ready.... Brainliest answer or Thanks means a lot!
Answer: from the moment of conception to the eighth week of pregnancy.
Explanation:
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