Ecosystems

An area where ground is covered by water most of the year

• Marsh

• Savanna

• Estuary

• Wetland

Tropical grassland that has clumps of trees and many grasses.

• Marsh

• Savanna

• Desert

• Wetland

Treeless wetland with tall grasses

• Marsh

• Savanna

• Estuary

• Wetland

An area that tends to receive little rain and have extreme temperatures with very hot days and cool nights.

• Marsh

• Savanna

• Desert

• Estuary

A body of water that forms where freshwater from rivers or streams mix with saltwater from bays and oceans.

• Marsh

• Savanna

• Estuary

• Wetland

A limestone structure made from layers of coral skeletons that collect over hundreds of years.

• Ecosystem

• Permafrost

• Coral Reef

• Swamp

A large system of animals, plants and organisms that live together in a particular area

• Ecosystem

• Permafrost

• Coral Reef

• Swamp

The frozen layer of soil below the top layer of the ground in the tundra

• Ecosystem

• Permafrost

• Coral Reef

• Swamp

Wetland with tall trees and thick vines

• Ecosystem

• Permaforst

• Coral Reef

• Swamp

What are the four main land ecosystems

• Forest, Grassland, Marine, and Desert

• Forest, Grassland, Freshwater, and Marine

• Forest, Grassland, Desert, and Tundra