4.5 Aquatic Ecosystems

Front

What is the aphotic zone?

Back

The ocean's dark lower layer where photosynthesis cannot occur.

Front

What factors are important in aquatic ecosystems?

Back

Temperature, sunlight, and dissolved oxygen.

Front

What are the three types of wetlands?

Back

Swamp, marsh, bog.

Front

What organisms would you find in the intertidal ocean?

Back

Barnacles, seaweed, and starfish.

Front

What is salinity?

Back

The amount of salt dissolved in water.

Front

What is the photic zone?

Back

The sunlit upper layer of the ocean where photosynthesis occurs.

Front

What is a marsh?

Back

A wetland dominated by herbaceous plants.

Front

What is a swamp?

Back

A wetland that is forested and has standing water.

Front

What is a bog?

Back

A wetland that accumulates peat and is acidic.

Front

What is the role of dissolved oxygen in aquatic ecosystems?

Back

It is essential for the survival of aquatic organisms.