Aquatic Ecosystems Review

What is the main factor that separates marine and freshwater ecosystems?

• Salt content

• There's more freshwater than salt water

• Nothing can live in salt water

• There are no freshwater plants

Areas that are periodically under water or where soil contains a great deal of moisture is called

• Watershed

• Estuaries

• Wetlands

• Marine ecosystems

Tags

NGSS.MS-ESS2-4

The area between the high- and low-water mark on a shore is called the:

• Shoreline Zone

• Low Tide Zone

• High Tide Zone

• Intertidal Zone

What is the shallow, light filled area near lake and ocean shorelines called?

• Littoral Zone

• Benthic Zone

• Estuary

• Watershed

The biologically rich, protected area where a river meets the sea is called a(n):

• Headwater

• Estuary

• Depositional Zone

• Wetland

Tags

NGSS.MS-LS2-5

An oyster would be an example of what type of aquatic life?

• Plankton

• Nekton

• Benthos

• Decomposer

How does overuse of fertilizer affect lakes?

• It increases the rate of nutrient accumulation

• Decreases the rate of nutrient accumulation

• Improves water clarity

• Reduces algae populations

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-ESS3-4

What organism is the base of food webs in all aquatic ecosystems?

• Phytoplankton

• Shrimp

• Small fish

• Polar bears

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What causes the extreme productivity of estuaries?

• A lack of nutrients in the water where the river meets the sea

• High levels of nutrients being trapped where the river meets the sea

• Presence of a barrier island boosting the rate of erosion

• Frequent fires the add nutrients back into the soil

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

What kind of waters are the best environment for coral reefs?

• Cold waters around the poles, far from shore.

• Cold waters around the poles, close to shore.

• Warm waters near the equator, far from shore.

• Warm waters near the equator, close to shore.