Aquatic Ecosystems

Front

What is an estuary?

Back

An area in which fresh water from a river mixes with salt water from the ocean.

Front

What is the benthic zone?

Back

The bottom region of oceans and bodies of fresh water.

Front

Which of the following is not a freshwater ecosystem?

Back

Estuaries.

Front

What does salinity refer to?

Back

How much salt is in the water.

Front

What is a wetland?

Back

An area where land is periodically underwater.

Front

What is a mangrove swamp?

Back

A coastal ecosystem characterized by salt-tolerant trees and shrubs.

Front

What is a coral reef?

Back

A diverse underwater ecosystem held together by calcium carbonate structures secreted by corals.

Front

What is the limnetic zone?

Back

The well-lit, open surface waters in a lake away from the shore.

Front

What is nekton?

Back

Aquatic animals that are able to swim and move independently of water currents.

Front

What is the difference between freshwater and saltwater ecosystems?

Back

Freshwater ecosystems have low salt concentration, while saltwater ecosystems have high salt concentration.