we need to see the diagramph
Hola amigo mi no hablas ingles mi only hablas español
Answer:
because they dont need to consume energy to survive and they have to take control of a host cell to reprouce/replicate, they cant do it on their own
Explanation:
hope this helpedd :)
Answer:
The simplest mechanism by which molecules can cross the plasma membrane is passive diffusion. Passive diffusion is thus a nonselective process by which any molecule able to dissolve in the phospholipid bilayer is able to cross the plasma membrane and equilibrate between the inside and outside of the cell.
