Characteristics of Ecosystems

Environments include both _____ and _____ things.

• resources; factors

• air; water

• living; nonliving

• buildings; animals

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Ecosystems depend on organisms to ________ with each other to maintain stability.

• interact

• build

• eat

• grow

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Air, water, and sunlight are all ________ components of an ecosystem.

• factors

• nonliving

• man-made

• living

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Organisms are the ________ things in an ecosystem.

• factors

• nonliving

• resources

• living

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Deserts, mountains, and rivers are all examples of ________.

• vacation spots

• tundra

• ecosystems

• wetlands

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Label the ecosystem

b

ocean

tundra

rainforest

desert

Wildlife biologists study _____.

• populations in ecosystems

• only wild animals

• only plants

• farm animals

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Plants compete for air, water, ________ within ecosystems.

• space, and sound

• sunlight, and wind

• space, and sunlight

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An invasive species is a plant or animal that is ________ to an ecosystem.

• not native

• just visiting

• beneficial

• not friendly

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Is the picture shown an example of a terrestrial or aquatic ecosystem?

• terrestrial

• aquatic

• I have no idea