Chapter 22: Biomes and Ecosystems

Ecological relationship in which two or more organisms depend on the same limited resource.

Trees that lose their leaves at the end of the growing season

A large region characterized by specific types of plant and animal communities.

Cone-bearing trees that usually keep their leaves/needles during all the seasons of the year

Line of energy transfer as a result of the feeding patterns of a series of organisms

Environmental factor that stops a population from reaching its full potential of size.

An interaction between two or more living things in which they are said to work together.

Community of organisms and their abiotic or nonliving environment

A species that colonizes an uninhabited area and that starts a process of succession.

Organism that can make its own food by using energy from its surroundings

Process by which plants use sunlight, carbon dioxide, and water to make food.

A region characterized by a very dry climate and extreme temperatures

Region of evergreen, coniferous forest below the arctic and subarctic tundra regions

An organism that gets energy by breaking down the remains of dead organisms or animal waste

The replacement of one type of community by another at a single location over a period of time.

The number and variety of organisms in a given area during a specific period of time.