Mr K Enviro Sci Ch 7 (alt) Aquatic Ecosystems

Glacial lakes are formed by .....

• earthquakes

• the action of glaciers

• meteors

• erosion

Tags

NGSS.MS-ESS2-2

What is the year that experts are predicting that world fisheries will collapse?

• 2050

• 2040

• 2030

• 2060

Sunlight reaches about how deep into the ocean's surface?

• 20 meters

• 100 meters

• 50 meters

• 200 meters

Why are coral reefs found in shallow waters of the ocean?

• The oxygen levels are higher

• The pressure is too strong in deep waters

• There are more fish to provide nutrients

• It can reach the sunlight for photosynthesis

Tags

NGSS.MS-LS1-6

What are "transient" residents of an ecosystem?

• organisms that are prey for other organisms

• organisms that are found there, year round

• organisms that are found there, only a portion of the year

• organisms that are predators of other organisms

Wetlands that contain non-woody plants are called what?

• Estuaries

• Marshes

• Swamps

• Littoral zones

What are "littoral" zones?

• near-shore zones with limited aquatic life due to pollutants

• deep zones with abundant aquatic life

• surface water rich in phytoplankton

• near-shore zones with abundant aquatic life

What method of commercial fishing is considered to be the most destructive to the aquatic environment?

• explosive blasting

• drift net fishing

• bottom trawling

• Long line fishing

Free swimming organisms are called ....

• plankton

• benthos

• nekton

• fish

Dead organisms in the oceans usually become part of what ecosystem?

• the littoral

• the pelagic

• the planktonic

• the benthos