A functional unit (smaller than a biome) that consists of the dynamic interactions between plants, animals, microorganisms, and their environment.

This is the distance an animal movies during its daily travels to secure its habitat requirements.

The position an organism occupies in its environment.

Organisms that breakdown waste and returns it as nutrients.

An organism that can produce its own food.

An organism that must obtain its food by eating other organisms.

A bobcat gets its energy from eating quail, which got its energy from eating a grasshopper, which gets its energy from eating a blade of grass, which got its energy from the sun. This is an example of.....

This is an imaginary structure that is formed when food chains overlap.

Variety of lifeforms make an ecosystem this....

An animal that eats dead animals or carrion is this:

A non-living feature in an environment that serves a purpose.

A living organism that serves a purpose in an environment.

A component of an organism's environment, such as a nutrient, that is in short supply and therefore limits their ability to reproduce in greater numbers.

The area that an animal covers in its normal activities such as eating, nesting, mating, and caring for it's young.

The orderly, predictable change in plant communities over a period of time following a disturbance.

The ability of a particular piece of land to support wildlife species.

The area where two different habitat types, or plant communities, come together.