Section 1
An Environment Provides for an Organism's Needs
Key Idea
Every living thing, or organism, lives in a place called its environment. An environment includes all the living and nonliving things in one area, such as the soil, water, and other plants and animals.
To stay alive, an organism must get what it needs from its environment. For example, an earthworm needs damp soil to keep its skin wet, and a polar bear needs a cold, icy place to hunt for its food.