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APES Unit 2 - The Living Earth

Total questions: 40

Worksheet time: 3hrs 20mins

Name
Class
Date
1.

Which pair of biogeochemical cycles are most associated with inorganic fertilizer and sewage waste?

a)

Carbon and Nitrogen cycles

b)

Carbon and Sulfur cycles

c)

Phosphorus and Nitrogen cycles

d)

Sulfur and Nitrogen cycles

e)

Sulfur and Water cycles

2.

A forest has a GPP of 10 kilograms C/m^2/year and the rate of cellular respiration is 4.5 kilograms C/m^2/year. What is the NPP?

a)

14.5 kg C/m^2/year

b)

5.5 kg C/m^2/year

c)

10 kg C/m^2/year

d)

4.5 kg C/m^2/year

e)

6.5 kg C/m^2/year

3.

Which of the following is not an abiotic factor?

a)

sunlight

b)

pH

c)

water temperature

d)

bacteria

e)

soil texture

4.

Choose the correct sequence for energy flow within an ecosystem

a)

Herbivores --> producers --> carnivores --> scavengers

b)

Producers --> herbivores--> carnivores --> scavengers

c)

Producers --> carnivores --> herbivores--> carnivores

d)

Scavengers--> carnivores --> herbivores--> producers

5.

Which group of organisms perform photosynthesis?

a)

scavengers

b)

autotrophs

c)

heterotrophs

d)

decomposers

6.

Humans have a considerable effect on the hydrologic cycle. Which of the following human activities have(has a) direct effect(s) on the cycle?

I. Deforestation

II. Urbanization

III. Mining of fossil fuels

a)

I

b)

II

c)

III

d)

I and III

e)

I, II, and III

7.
The diagram shows that carbon is transferred through the atmosphere. If an animal breathes out carbon dioxide, this is an example of:
a)
Respiration
b)
Combustion
c)
Photosynthesis
8.
The diagram shows that carbon is transferred through the atmosphere. Which of the following activities would be an example of combustion?
a)
A car burning fuel
b)
A lamb eating grass
c)
A tree going through photosynthesis
d)
A dead animal decomposing
9.
What are the reactants (inputs) for cellular respiration?
a)
Glucose and oxygen
b)
Glucose and carbon dioxide
c)
Carbon dioxide and water
d)
Carbon dioxide and oxygen
10.
What is produced (made) through cellular respiration?
a)
Glucose and oxygen
b)
Glucose and carbon dioxide
c)
Carbon dioxide, water, and ATP (energy)
d)
Carbon dioxide and oxygen
11.
What are the inputs and outputs of photosynthesis?
a)
Inputs: carbon dioxide and oxygen.
Outputs: glucose and water.
b)
Inputs: Glucose and oxygen.
Outputs: Water and carbon dioxide.
c)
Inputs: Glucose and carbon dioxide.
Outputs: water and oxygen.
d)
Inputs: water and carbon dioxide
Outputs: glucose and oxygen
12.
What percent of energy is transferred between trophic levels in an energy pyramid?
a)
10%
b)
50%
c)
100%
d)
25%
13.
Why are there usually few organisms at the top of an energy pyramid?
a)
there is much less energy available so there are less organisms supported at the top of the pyramid
b)
humans hunt for organisms at this level
c)
the organisms at the top of the energy pyramid are consumed by the oraganisms at the base of the pyramid
d)
organisms at the top are larger and require more living space
14.
Rabbits eat grass and other plants to survive, but they do not eat animals. What kind of animal are rabbits?
a)
Producer
b)
Primary Consumer
c)
Secondary Consumer
d)
Decomposer
15.
Which of these organisms would be most likely to be found at the top of an energy pyramid?
a)
Crab
b)
Shark
c)
Sardine
d)
Kelp
16.
Which trophic level in this pyramid would have the greatest amount of biomass?
a)
Phytoplankton trophic level
b)
Crustacean trophic level
c)
Mackerel trophic level
d)
Shark trophic level
17.
If there are 10,000 units of energy available at the phytoplankton trophic level, approximately how many units of energy are available at the herring trophic level?
a)
10,000
b)
1,000
c)
100
d)
10
18.
Which trophic level in this pyramid would have the greatest amount of available energy?
a)
Shark
b)
Mackerel
c)
Herring
d)
Phytoplankton
19.
Increase in which gas is primarily responsible for increased global warming?
a)
Carbon dioxide
b)
Water vapor
c)
Methane
d)
Nitric oxides
20.

Which of the following is NOT an example of an ecosystem?

a)

Lake Michigan

b)

Midwest prairie

c)

Arctic tundra

d)

Eastern U.S.

21.

An ecosystem is...

a)

The food web in an area

b)

The populations in an area

c)

The living and non-living things interacting in an area

d)

The organisms interacting in an area

22.

Nitrogen fixation is when...

a)

Nitrogen gas is converted to ammonia/ammonium

b)

Ammonia is converted to nitrates and nitrites

c)

Nitrates are converted to nitrogen gas

d)

Plants absorb ammonium and nitrate to create DNA

23.

Assimilation is when...

a)

Nitrogen gas is converted to ammonia/ammonium

b)

Ammonia is converted to nitrates and nitrites

c)

Nitrates are converted to nitrogen gas

d)

Plants absorb ammonium and nitrate to create DNA

24.

Denitrification is when...

a)

Nitrogen gas is converted to ammonia/ammonium

b)

Ammonia is converted to nitrates and nitrites

c)

Nitrates are converted to nitrogen gas

d)

Plants absorb ammonium and nitrate to create DNA

25.

Which of the following is a source of phosphorus?

a)

Erosion of rocks

b)

Respiration

c)

Forest fires

d)

Refining fossil fuels

26.

Which of the following is a source of sulfur?

a)

Erosion of rocks

b)

Respiration

c)

Forest fires

d)

Smelting

27.

Which of the following increases in the water cycle due to deforestation?

a)

Soil moisture

b)

Runoff

c)

Transpiration

d)

Precipitation

28.

Which of the following is a carbon SOURCE?

a)

Photosynthesis

b)

Respiration

c)

Dissolve into ocean

d)

Compaction and burial

29.

Which of the following is a carbon SINK?

a)

Photosynthesis

b)

Respiration

c)

Combustion

d)

Forest fires

30.

What impact does deforestation have on the carbon cycle?

a)

Less CO2 in atmosphere

b)

More CO2 in atmosphere

c)

More photosynthesis

d)

No impact

31.

What does an increase in phosphorus in the water DIRECTLY cause?

a)

Increased fish population

b)

Increased algae population

c)

Increased top predator populations

d)

Immediate dead zone for all organisms

32.

Which is an example of a provision?

a)

Food

b)

Pollination

c)

Carbon sequestration

d)

Air quality

33.

Which is an example of a regulating service?

a)

Food

b)

Pollination

c)

Medicinal resources

d)

Air quality

34.

Which is an example of a support system?

a)

Food

b)

Wood

c)

Genetic diversity

d)

Air quality

35.

What makes an ecosystem resilient?

a)

Large population sizes

b)

Increased human intervention

c)

Increased genetic biodiversity

d)

Increased duration of disturbance

36.

Which ecosystems have the highest diversity?

a)

Low levels of disturbance

b)

Intermediate levels of disturbance

c)

No disturbances

d)

High levels of disturbance

37.

Which value is always the largest?

a)

GPP

b)

NPP

c)

Respiration

d)

Photosynthesis

38.

When a disturbance does not change the ecosystem's flow of energy and matter, the ecosystem has...

a)

High resistance

b)

Low resistance

c)

Low resilience

d)

Low biodiversity

39.

Which scientific discipline is interested in studying damaged ecosystems?

a)

Astronomy

b)

Physics

c)

Restoration Ecology

d)

Biology

40.

Preserving a state park for its natural beauty is an example of which type of value?

a)

Intrinsic

b)

Instrumental

c)

Provisions

d)

Regulating service

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