Scientists and biologists study the world using experimentation. This can be done through observation, or by performing scientific tests in a lab.
Answer:
The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
Explanation:
correct awnser is D i got it right on the same question
i think it would be true but not 100% sure
