Types of Ecosystems
Lesson Terms
Freshwater Zones
100

True or false: marine ecosystems contain low salt content.

FALSE!

100

An area that's saturated with water and supports aquatic plant life is a...?

Wetland

100

Does freshwater make up a lot or a little of the Earth's water?

A little! Freshwater only accounts for about 2.5% of the Earth's water!

200

What type of ecosystem makes up the majority of the Earth's water?

Marine

200

What forms as a barrier along the edges of continents to protect them from eroding shorelines?

Coral reefs

200

True or false: all freshwater zones are equal in size. 

FALSE!

300

What are the 3 main types of ecosystems?

Freshwater, transitional, and marine

300

An area that's saturated with water but supports aquatic plants?

A wetland

300

Give 2 examples of a freshwater body or water

Lake, pond, river, stream, glacier, groundwater, etc.

400

Is the limnetic zone a part of a marine ecosystem or a freshwater scosystem?

Freshwater

400

What is an estuary?

An area where a freshwater river or stream meets the ocean.

400

Name the 3 freshwater zones

Littoral, limnetic, profundal

500

Give 1-2 examples of a transitional aquatic ecosystem.

Marshes, bogs, swamps

500

How is it possible for a large lake and a small lake to contain similar numbers of living organisms?

The sizes of the littoral and limnetic zones can be similar in size while the profundal zones can vary in size. Few living organisms are found in the profundal zone.

500

Give 2 characteristics of slow moving freshwater

Less oxygen, more nutrients, accumulated sediment, organic materials, stagnant water, etc.