How Ecosystems Work

A tree, forest, or pond are all examples of what

• nonliving things

• living things

• ecosystems

Large ecosystems contain many kids of plants and animals and have a range of

• habitats

• abdomens

• grasslands

Words that talk about a place are habitat and

• animals

• environment

• plants

Animals have ____________ to help them get what they need in order to survive in their ecosystem.

• people

• ecosystems

• adaptations

A ____________________ describes who eats what in an ecosystem.

• food web

• food chart

• menu

Ecosystem changes can help keep it healthy.

• true

• false

Ecosystem changes can help keep it healthy.

• true

• false

Some changes are a normal part of life in an ecosystem like ______________.

• people.

• growing fur.

• changing seasons.

People sometimes cause harmful changes to ecosystems.

• True

• False

People sometimes cause harmful changes to ecosystems.

• True

• False