These are aquatic plants and animals drifting freely.

They grow underwater.

They are bottom-dwelling organisms; many are scavengers or decomposers.

Larger, free-swimming aquatic organism.

An aquatic ecosystem is also affected by nonliving things or

It makes up the largest part of Earth.

Different plants and animals live in an aquatic environment. These are the ___________ or living things that affect the aquatic environment.

An aquatic ecosystem is any land-based environment in which the biotic components interact with the abiotic components.

The biotic components are classified into three, based on their location in a body of water.

The three classifications of biotic components are Plankton, Nekton, and Benthos.