Chapter 7 Review

Nekton are all organisms that swim actively in open water, such as fish and whales.

•6 out of the 10 largest urban areas are built on estuaries. One if this cities does not belong.

As plants and algae multiply, the number of bacteria feeding on the decaying organisms grows

______________ is the only continent never colonized by humans.

•Salt Marsh's acts as a nursery where species find protection when they are small like: 

Fresh water ecosystems include coastal areas of marshes, bays and coral reefs.

Salinity is the amount of pepper the water contains.

Wetlands improve the water quality of _________

Drifting animals, may be microscopic or as large as a jellyfish

Ways people Put rivers in danger

Which is not function of Wetlands

•A shallow zone in a freshwater habitat where light reaches the bottom and nurtures plants.

•Pollutants that damage Estuaries damage other Aquatic Ecosystems: Which Does not Belong?