Answer:
2.all different types of organisms
Answer:
D. Animals living in large groups tend to compete more for resources and mates.
Answer: they drop their leaves and go into dormancy
Explanation:
It prevents harmful substances from entering a cell
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.
