Answer:
C.
Explanation:
This cell shows the pronowns and continuous verbal expressions that have and equvivalent factor of how you get C Presence of nucleus in Cells
The immune system doent take it as a threat but other systems would take it as a threath
Answer:
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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.