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Aquatic ecosystem

Total questions: 14

Worksheet time: 11mins

Name
Class
Date
1.

What’s the type of aquatic ecosystem were the fresh water and marine meet?

a)

Estuaries

b)

Rivers

c)

Lakes

2.

An aquatic ecosystem is…

a)

Fish and frogs live there.

b)

Water like ocean, lake,pond,and stream,but no organisms.

c)

Water environment and the community of organisms live there.

3.

Some organisms that live in lakes are :

a)

Sharks

b)

Rocks and soil

c)

Fish and frogs

4.

Why is wetland important?

a)

wetlands helps control floods.

b)

Wetlands help farming.

5.

Organisms in estuaries are adapted to..

a)

Frequent dry conditions

b)

High winds

c)

Changing salt levels

6.

Which is a fresh water ecosystem?

a)

River

b)

Estuary

c)

Ocean

7.

Select all of the Abiotic factors below

a)

Water temperature

b)

Salinity (salt level)

c)

All the plants in the ecosystem

d)

pH level

e)

Amount of light

8.

Marine ecosystems and Estuaries are the SAME, is this statement True or False?

a)

True

b)

False

9.

How is an estuary different from a fresh water ecosystem and a marine ecosystem?

a)

Estuaries ONLY fresh water

b)

Estuaries are a mixture of fresh water and salt water

c)

No living things can survive in an estuary

10.

All of the following are examples of marine ecosystems EXCEPT

——————————————.

a)

Oceans

b)

Ponds

c)

Tide pools

d)

Coral reefs

11.

What are the three major types of aquatic ecosystems?

a)

Marine,Fresh water, and estuaries

b)

Water,sunlight,pH level

c)

Consumers,

Producers,and

Decomposers

12.

A(n)__________ is a partially enclosed body of water formed where a river flows into an ocean. This is one of the major types of aquatic ecosystems, that consists of a mixture of salt water and freshwater.

a)

Ponds

b)

Lakes

c)

Estuaries

13.

A(n) _______________ is an area of land that is covered or saturated with water for at least part of the year.

a)

Marine ecosystems

b)

Wetland

c)

Freshwater ecosystems

14.

Salinity refers to…

a)

How many plants are in the water.

b)

How many organisms live in the water.

c)

How much salt is in the water.