Nat Res: Freshwater

Lakes are divided into zones. These zones are based on

• the size of the lake

• the availability of sunlight

• the pressure of the lake

• the vegetation that lives there

This zone is found at the bottom of a lake

• Littoral

• Limnetic

• Profundal

• Benthic

This type of freshwater wetland is found around lakes and streams where grasses and reeds are common, but trees are not.

• Marshes

• Estuary

• Swamps

• Salt Marsh

Rivers are generally smaller than streams.

• True

• False

Which of the four biomes below has the highest relative productivity?

• Rivers

• Ponds/Lakes

• Wetlands

• Streams

Tags

NGSS.MS-LS1-6

Plant-like plankton

• Phytoplankton

• Zooplankton

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Animal-like plankton.

• Phytoplankton

• Zooplankton

Tags

NGSS.MS-LS2-4

Only ____% of the Earth's water is freshwater.

What does it mean if a body of water is oligotrophic?

• The lake is murky, gross, and full of algae.

• The lake is cloudy, but it isn't super dirty or super clean.

• The water is clear with little to no nutrients.

One reason estuaries are important?

• Used as a place to help predators capture their prey

• Used as a "nursery" to help organisms raise babies

• Used as a place to increase pollution

• Used as an "overflow" area to prevent flooding

Tags

NGSS.MS-LS2-5