Chapter 3 Test

What are the two main groups of aquatic biomes?

• saltwater and freshwater
• marine and freshwater
• marine and estuarine
• oligotrophic and eutrophic

In a body of water, the colder area with more nutrients but little to no light is called the:

• Benthic Zone
• Source Zone
• Floodplain Zone
• Pelagic Zone

In a body of water, the warmer area with more light and less nutrients is called the

• Benthic Zone
• Source Zone
• Floodplain Zone
• Pelagic Zone

These are lakes in lowland areas with green water from phytoplankton and rich in nutrients.

• estuarine
• oligotrophic
• eutrophic
• marine

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These are lakes in mountain regions with clear water and few nutrients.

• estuarine
• oligotrophic
• eutrophic
• marine

Which zone supports the least amount of life?

• photic
• aphotic
• neritic
• ocean

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Which biome has dense evergreen (pine) forests?

• taiga (boreal forest)
• tundra
• desert
• savanna

Estuaries form where 

• a lake evaporates
• a river meets the sea
• a river becomes dammed
• a wetland becomes filled in

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An ecosystem where water covers the soil or water is near the surface of the soil is called

• a desert
• an ocean
• an estuary
• a wetland

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Circulating water in lakes and ponds is important for distributing 

• heat
• oxygen
• nutrients
• all of these

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