Answer:
-provides protection for a cell
-provides a fixed environment inside the cell.
-The cell membrane also provides some structural support for a cell.
Explanation:
So the trpohic pyramid is basically the producers and secoundary abs primary consumers and all that but what comes first so the weakest animals that the animals eat above it
Because they don't have a or any cells and have no DNA
Answer: False
Explanation: They are replaced every seven years