What is competition? why can't two organisms compete if they live in different habitats

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

Which of the following human activities resulted in the growth of the north american deer population?

When a cell is in a solution that has the same concentration of water and solutes as its cytoplasm, the cell is said to be in a(n) solution. a. isotonic b. hypotonic c. hypertonic b. facilitated