Science Unit 3

Front

An organism that breaks down dead plants or animals without internal digestion.

Back

Decomposer

Front

The space and conditions surrounding an organism, including living and nonliving things.

Back

Answer: environment

Front

Actions by one entity affecting another:

Back

Interactions

Front

A very small life-form, especially a bacterium.

Back

microbe

Front

A mixture of sand, silt, clay, rock, and humus.

Back

Soil.

Front

Unused, rejected materials seen as worthless or unwanted.

Back

Waste

Front

Every environment contains living and nonliving things.

Back

True

Front

Constant cycling occurs between living (plants, animals, microbes) and nonliving (air, water, soil) things: ____

Back

matter

Front

Found in air, released when animals exhale.

Back

Carbon dioxide

Front

Plants take in this gas from the air to produce food:

Back

Oxygen