The rate of speciation is most likely to increase when
2 answers:
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Answer:
A. Controls what goes into and out of the cell
Explanation:
If what you are referring to is the image attached, then the answer would be A. The structure that is labelled A is called the cell membrane.
The cell membrane is what we call semi-permeable. This means that some materials can go through them and others cannot without the help of other factors. The cell membrane encases the cell and protects the cell. It lets nutrients, minerals, and waste to move in and out of the cell.
Other choices:
B describes the cytoplasm.
C describes the nucleus
D describes the vacuole
