Aquatic Ecosystems

An aquatic ecosystem includes any

• fish and frogs living there
• water environment and the community of organisms living there
• water but no animals or plants

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Some organisms that live in lakes include:

• sharks
• protists
• rocks and soil

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Which is a fresh water ecosystem?

• river
• estuary
• ocean

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All of the following are examples of freshwater ecosystems EXCEPT ________________.

• ponds

• Estuaries

• lakes

• rivers

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Pond/Lake

• A an area of freshwater completely surrounded by land.

• An area of low-lying ground where water collects.

• A coastal ecosystem that is regularly flooded by the tides.

• In deep ocean waters, few plants can grow. Animals often are bio-luminescent.

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Aquatic means ______________________.

• having to do with water

• having to do with land

• having to do with air

• having to do with heat

Which aquatic ecosystem has large bodies of saltwater that are divided by continents?

• oceans

• estuaries

• lakes

• ponds

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True or False: The temperature in the ocean is always the same.

• True

• False

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Which lists animals that live in an aquatic ecosystem?

• black bear, deer, vole

• ducks, turtles, amphibians

• panthers, monkeys, snakes

Which is a difference between abiotic and biotic factors?

• Abiotic factors are plants and biotic factors are animals.

• Abiotic factors are all living things and biotic factors are all nonliving things.

• Abiotic factors are all nonliving things and biotic factors are all living things.

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