This are organisms that feed on producers and other consumers.

This are organisms considered as saprotrophs such as bacteria and fungi that feed on dead organic matter.

This are organisms that feed on plants

This are organisms that feed only on other animals

This are organisms that feed on both plants and animals

It is very important to all living things. The producers need it for making food.

It is a mixture of gases.

It provides the substrate for the growth of some organisms

The activities of some organisms depend on their environment's _________________.