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Ecosystem Test Review

Total questions: 40

Worksheet time: 21mins

Name
Class
Date
1.

A ______________________ is a linear sequence that shows how energy is passed from one living thing to another in the ecosystem.

a)

Food Web

b)

Food Chain

c)

Trophic Level

d)

Food Web

2.

A bear feeds on both berries and insects. What term best describes this type of consumer?

a)

Herbivore

b)

Carnivore

c)

Omnivore

d)

Detritivore

3.

In the food chain Algae -->  Small Fish--> Large Fish --> Osprey, what role does the Osprey occupy?

a)

Producer

b)

Primary consumer

c)

Secondary Consumer

d)

Tertiary consumer

4.

Consider the food chain: Grass --> Grasshopper -->  Mouse -->  Snake --> Hawk. Which organism eats the primary consumer?

a)

Grasshopper

b)

Mouse

c)

Snake

d)

Hawk

5.

Which organism in a food chain typically has the highest energy available within an ecosystem.

a)

Primary consumer

b)

Secondary consumer

c)

Producer

d)

Tertiary consumer

6.

What percentage of energy is transferred from one trophic level to the next?

a)

10%

b)

100%

c)

.1%

d)

1%

7.

What organisms break down the remains of dead organic matter?

a)

Heterotrophs

b)

Consumers

c)

Decomposers

d)

Producers

8.

True or False: Another word for producers are heterotroph?

a)

True

b)

False

9.

A biological community where living things interact with one another and with their environment is called an:

a)

Biosphere

b)

Community

c)

Ecosystem

d)

Pond

10.

Many individuals of the same species living together in a defined area form a

a)

Community

b)

Population

c)

Genus

d)

Ecosystem

11.

Which of the following provides the best example of an ecological community?

a)

A colony of termites

b)

A flock of migrating birds

c)

Flies on a piece of rotting meat

d)

The organisms in a freshwater pond

12.

A consumer that eats animal and plant material is called

a)

Omnivore

b)

Carnivore

c)

Producer

d)

herbivore

13.

Each step in a food chain or food web is called a

a)

trophic level

b)

Food chain

c)

Energy pyramid

14.

Which of the following term is defined as the total mass of organisms within a trophic level?

a)

Habitat

b)

Producers

c)

Biomass

d)

Niche

15.

Secondary consumers eats ________________.

a)

producers

b)

primary consumers

c)

secondary consumers

d)

tertiary consumers

16.

A food chain from the food web above is: Green plant --->  Rabbit --> Wildcat --> Lion The lion obtained 4000 kJ of energy after preying upon the wildcat. How many joules of energy did the green plant originally consist of?

a)

4000000 kJ

b)

40000 kJ

c)

400 kJ

d)

40 kJ

17.

A food chain from the food web above is: Green plant -->  Rabbit --> Wildcat --> Lion The green plant has 4000000 joules of energy How many joules of energy did the rabbit have after consuming the green plant

a)

4000000 kJ

b)

400000 kJ

c)

400 kJ

d)

40 kJ

18.

Which of the following two organisms are producers?

a)

Plant and phytoplankton

b)

Plants and consumers

c)

Consumers and phytoplankton

d)

Phytoplankton and chlorophyll

19.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
20.

Look at the food chain. How do foxes get energy?

a)

from eating rabbits

b)

from eating grass

c)

from the sun

d)

from eating other foxes

21.
The parts of the food chain in the picture are out of order.  Which picture should be first in the food chain shown?
a)
snake
b)
sun
c)
carrot
d)
rabbit
22.

The movement of carbon between the atmosphere, land, and oceans is known as what?

a)

carbon dating

b)

carbon cycle

c)

carbonization

23.

Which of the following processes removes CO2 from the atmosphere?

a)

photosynthesis

b)

burning fossil fuels

c)

cellular respiration

24.

. Organisms return carbon to the atmosphere through which process?

a)

condensation

b)

photosynthesis

c)

cellular respiration

25.

. What is the term for burning fossil fuels and releasing carbon dioxide into the atmosphere?

a)

synthesis

b)

combustion

c)

expulsion

26.

Which of the following best describes a carbon reservoir?

a)

carbon storage

b)

carbon destroyer

c)

carbon consumer

27.

Which of the following is the largest carbon reservoir?

a)

atmosphere

b)

plants and animals

c)

the ocean

28.

Which of the following is a consequence of deforestation?

a)

more CO2 is released into the atmosphere

b)

less CO2 is released into the atmosphere

c)

decreased soil erosion

29.

Which of the following does NOT increase the amount of CO2 in the atmosphere?

a)

burning coal

b)

trees

c)

volcanic eruption

30.

Which of the following is NOT a part of the carbon cycle?

a)

evaporation

b)

cellular respiration

c)

photosynthesis

31.

Which process in the water cycle involves water vapor cooling and changing back into liquid droplets?

a)

Evaporation

b)

Condensation

c)

Precipitation

d)

Infiltration

32.

What is the primary source of energy that drives the water cycle?

a)

Wind

b)

Gravity

c)

The Sun

d)

Oceans

33.

Which process occurs when plants release water vapor into the air through their leaves?

a)

Sublimation

b)

Transpiration

c)

Infiltration

d)

Runoff

34.

What is the term for water flowing over the surface of the land and eventually into rivers, lakes, or oceans?

a)

Groundwater

b)

Transpiration

c)

Runoff

d)

Condensation

35.

What do the prefixes "bio" and "geo" mean in the word "biogeochemical"?

a)

Bio means "life," and geo means "earth."

b)

Bio means "water," and geo means "air."

c)

Bio means "plant," and geo means "soil."

d)

Bio means "animal," and geo means "energy."

36.

Animals get their nitrogen by eating what?

a)

Drinking Water

b)

plants or animals

c)

Just Plants

d)

They don't get nitrogen from eating only breathing

37.

This type of bacteria releases nitrogen from waste or dead cells back into the air. What is it called?

a)

Nitrogen-fixing bacteria

b)

Nitrifying bacteria

c)

Denitrifying bacteria

d)

Decomposing bacteria

38.

Click on the image to make it larger--The rabbit gets energy from the ....

a)

hawk

b)

mouse

c)

wildflowers

d)

grass

39.

The following are all forms of what?

a)

Precipitation

b)

Transportation

c)

Transpiration

d)

Evaporation

40.

True or False? Animals can uptake nitrogen directly from the air?

a)

True

b)

False