A physical characteristic that plant or animal has that makes it possible for it to live in its environment.

A class of mollusk that has two hinged shells, such as clams.

A plant that injests insects.

Dead plant matter and micro organisms.

Total surroundings plants, animals, climate, location.

A plant that gets air and water by using another plant for support.

Where fresh water and saltwater meet.

Food, water, shelter, and space so an animal can live.

Plant made up of algae and fungus.

An animal that eats plants and animals.

A living plant or animal.

An organism that lives in or on another organism.

An area of land with dense vegetation and shrub bogs.

2 unlike organisms living together for mutual benefit.

A class of mollusk that has 1 shell and usually spirals.

An elevated, dry Sandy area with desert - like vegetation.

The zone between low and high tide lines.

The zone of the shoreline below the timeline.

The zone of the shoreline above the guidelines, never Wet.

A grassy area with low shrubs and scattered trees.

An area of land in which the soil is wet and has lots of grasses.

Small floating or swimming plants and animals.

Organisms that live on the bottom of the ocean.

Strong swimming animals that live in open water.

All the plants and animal populations in a common area.

An organism that lives on dead or decaying matter.

A natural system in which living and non living things live together.