7.1 Freshwater Biome

7.1 Freshwater Biome

by HEATHER TILTON

Multiple Choice

What are the 2 types of aquatic biomes?

• rivers and streams

• lakes and oceans

• marine and fresh water

• marine and oceanic

Multiple Choice

_________ is the amount of salt dissolved in water.

• Temperature

• Salinity

• Nutrients

• Pressure

Multiple Choice

What aquatic biome is characterized by flowing fresh water?

• Lakes/Ponds
• Mangroves Swamps
• Rivers/Streams
• Coral Reefs

Multiple Choice

Ponds are divided into zones

• True

• False

Multiple Choice

Lakes are divided into zones. These zones are based on

• the size of the lake

• the availability of sunlight

• the pressure of the lake

• the vegetation that lives there

Multiple Choice

This zone is found at the bottom of a lake

• Littoral

• Limnetic

• Profundal

• Benthic

Multiple Choice

How are wetlands important to migrating birds? 

• The wetlands provide a temporary home for migrating birds that rest and feed in these habitats . 
• They provide a source of food for alligators and other animals that live in the wetlands. 

Multiple Choice

Why do wetlands have a rich supply of nutrients? 

• Dead leaves & other plant and animal materials serve as natural fertilizers. They add nitrogen, phosphates, and other nutrients to the water and soil.
• The area round the swamp leads to the land and  area developments such as new houses.  
• The larger citites in the area produce many large amounts of trees and grasses that give nutrients to the swamp 

Multiple Choice

A mix of freshwater and saltwater is called:

• wetland

• mangal

• brackish

• osmoconformer

Multiple Choice

An estuary is best defined as a place where

• fresh and salt water meet.

• a river meets a lake.

• a group of animals are gathered.

• the water from the land flows into a river.

Multiple Choice

True or False:

Sharks can live in Estuaries

• True

• False

Multiple Choice

Which of the following are types of estuaries?

• Bays.

• Lagoons.

• Mangrove swamps.

• All of the above.

Multiple Choice

Why are estuaries important to our environment?

• Estuaries filter pollutants and prevent erosion.

• Estuaries provide nurseries for marine life.

• Estuaries act as home for many types of wildlife.

• All of the above.

Multiple Choice

Salinity in an estuary can fluctuate drastically. However, when moving UPSTREAM salinity will always ____________.

• increase

• decrease

• stay the same