Answer: Cells membrane
Cells membrane is like a skin to human. It will be the border of the cells and protect it from outside by limiting things that can pass into it. It also used to dump waste so it should be able to make it pass out of cells. When cells membrane is disrupted/damaged, the existence of the cell can be threatened.
Answer:
The correct option is A.
group of populations that have shared a past and will have a shared future
Explanation:
This is because evolutionary species concept is a concept that indicate a form of ancestry descendants or lineage of populations that descend from the same ancestors possessing similar characteristics which were inherited from the ancestry and these traits are evident in the future.