I believe the anwser you are looking for is the
Cell Membrane.
It is a substance that lets things in and out of the cell
Answer:
When nitrogen is absorbed by the soil, different bacteria help it to change states so it can be absorbed by plants. Animals then get their nitrogen from the plants. Fixation - Fixation is the first step in the process of making nitrogen usable by plants. Here bacteria change nitrogen into ammonium.
hope it will help you
The correct answer is Liver
Answer:
I believe the answer is D.
The technical definition of that phrase is migration, if that clears it up a little more.
Hope this helps!
