Aquatic Ecosystems

A disease reduces the number of young salmon in a river. Which population will MOST likely increase as a result?

• trout and eagle

• algae and trout

• sculpin and algae

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which is most accurate in describing an estuary ecosystem?

• High salt levels keep the water clear of nutrients and proteins.

• Freshwater mixes with saltwater to provide a nutrient-rich environment.

• Cold water mixes with saltwater to create a cooling effect that encourages growth.

Tags

NGSS.MS-LS2-3

An aquatic ecosystem includes any

• fish and frogs living there

• water environment and the community of organisms living there

• water but no animals or plants

The major abiotic factors that influence aquatic ecosystems include

• water temperature and amount of light

• plants and animals

• water and plants growing there

What is the ecosystem for water?

• Terrestrial

• Aquatic

• Northern

• Tundra

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NGSS.MS-ESS2-4

NGSS.MS-LS2-3

Which explains the difference between a pond and an estuary?

• A pond is very shallow and an estuary is very deep.

• A pond contains no plants and an estuary contains plants.

• A pond is affected by tides and an estuary is not affected by tides.

• A pond contains freshwater and an estuary contains fresh and salt

  water.

are the largest biomes on Earth. They can be warm or cold. They are home to plants like seaweed and animals like fish, whales, turtles and sponges.

• oceans

• ponds

• lakes

• ice islands

Select ALL of the aquatic ecosystems.

• Stream

• Marsh

• Rainforest

• River

Which lists animals that live in an aquatic ecosystem?

• black bear, deer, vole

• ducks, turtles, amphibians

• panthers, monkeys, snakes

Bryson is comparing two different ecosystems and creates the following list of similarities: aquatic, diverse fish life, high salt concentration, plentiful light at the water's surface. Which two ecosystems is Bryson most likely comparing?

• ocean and lake

• estuary and ocean

• grassland and pond