That execution outside of the cell in which it is produced
is Enzymes it degrade large molecules into units that are little enough to be
pass through across the cell membrane and into the cell where they can be very
useful.
Ex. Air freshener.
simple diffusion is the process of a substance (such as air freshener) moving from high concentration to low concentration with little to no energy.
Answer:
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Whats the experiment? there's no experiment here
Substance abuse can spread STIs because when a user shares needles with an infected person, it can spread through the blood. Any high-risk behavior like this spreads STIs.
