Answer: C
The substance that must come through the cell membrane for the cell to live is nutrients. Cells would die if they did not get nutrients. Nutrients are what keeps the cell running.
Its called a microscope slide
Answer:
The answer is b hope this helps
<span>If a population of medium sized rodents is placed under a selective pressure that yields both very large and very small individuals it was most likely directional selection. I hope that this is the answer that you were looking for and it has actually come to your desired help.</span>
