Answer:
passive transport and diffuision
Explanation:
it requires no energy from the cell. Examples include the diffusion of oxygen and carbon dioxide, osmosis of water, and facilitated diffusion. diffusion does not.
They are called microscopic anatomy as the cell, tissues and organs are internal and needs a microscope for it to be seen inside the body.
<em><u>PLATO ANSWER:</u></em><em> </em>A and C
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