Question 1

Which of the following is not a molecule?

Accepted Answer

A)   O3
B)   O2
C)   C
D)   DNA
E)   H2OF) A) and C)
G) C) and D)

Question 2

Primary consumers are also known as

Accepted Answer

A)   carnivores.
B)   scavengers.
C)   decomposers.
D)   herbivores.
E)   top carnivoresF) B) and D)
G) B) and E)

Question 3

Photosynthesis is the process of converting __________ into __________ energy.

Accepted Answer

A)   chemical bond energy; kinetic
B)   solar energy; chemical bond
C)   solar energy; kinetic
D)   solar electrical energy; heat
E)   chemical bond energy; potentialF) A) and B)
G) C) and D) B

Question 4

Which is not a characteristic of acids?

Accepted Answer

A)   They readily give up hydrogen ions.
B)   They have a pH of less than 7.
C)   They react easily with living tissue.
D)   They react easily with nonliving minerals.
E)   All of these are characteristic of acids.F) A) and B)
G) A) and C)

Question 5

Based on what you know of photosynthesis, what effect would clearcutting of large forests have on the amount of carbon dioxide in the atmosphere?

Accepted Answer

A)   It would increase the level of carbon dioxide since less photosynthesis would be taking place.
B)   The amount of carbon dioxide would be decreased since the trees would no longer be living.
C)   There would be no change in carbon dioxide levels since humans put carbon dioxide into the atmosphere by burning fossil fuels.
D)   The amount of carbon dioxide would be the same since the reaction rates of photosynthesis and respiration are equal.E) A) and B)
F) C) and D)

Question 6

All members of a species that live in the same area at the same time make up a(an)

Accepted Answer

A)   species.
B)   ecosystem.
C)   community.
D)   population.
E)   biome.F) A) and D)
G) A) and E)

Question 7

A biological community consists of all

Accepted Answer

A)   populations living and interacting in an area.
B)   members of a species living in the same area.
C)   living things on Earth.
D)   populations of a given species.
E)   members of a species living in the same biome.F) C) and D)
G) A) and D)

Question 8

Humans alter the sulfur cycle by

Accepted Answer

A)   burning fossil fuels.
B)   mining rock.
C)   applying too much fertilizer to crop fields.
D)   clear cutting tropical forests.E) All of the above
F) A) and B)

Question 9

The process of photosynthesis and cellular respiration are similar in that they both

Accepted Answer

A)   capture energy in the form of sugar.
B)   occur in all living organisms.
C)   temporarily store energy in chemical bonds.
D)   capture energy from the sun.
E)   none of these are correct.F) D) and E)
G) C) and D)

Question 10

Which of the following statements would change this into a true statement: "Most, but not all, living organisms are made up of organic compounds"?

Accepted Answer

A)   All living organisms are made up of organic compounds.
B)   All living organisms are made up of inorganic compounds.
C)   Most, but not all, living organisms are made up of inorganic compounds.
D)   Most, but not all, living organisms are made up of organic elements.
E)   Most, but not all, living organisms are made up of inorganic elements.F) A) and B)
G) A) and C)

Question 11

Water expands when it crystallizes and freezes.

Accepted Answer

A) True 
 B)False

Question 12

Energy is the ability to

Accepted Answer

A)   move objects.
B)   become heated.
C)   transfer heat from one object to another.
D)   All of these are true.
E)   Both move objects and transfer heat from one object to another are true.F) A) and B)
G) A) and C)

Question 13

An ecosystem consists of

Accepted Answer

A)   a physical environment within which a biological community lives.
B)   the species with which a biological community interacts.
C)   a biological community and its physical environment.
D)   the primary producers within a biological community.
E)   all the species in a biological community.F) B) and E)
G) All of the above

Question 14

The law of conservation of matter tells us that matter

Accepted Answer

A)   can never be reused.
B)   needs to be conserved or it will not be available for future generations.
C)   can be destroyed.
D)   can be conserved by some adaptive strategies.
E)   is used repeatedly.F) B) and D)
G) A) and D)

Question 15

Which biogeochemical cycle lacks an atmospheric component?

Accepted Answer

A)   The hydrologic cycle.
B)   The carbon cycle.
C)   The nitrogen cycle.
D)   The phosphorous cycle.E) None of the above
F) All of the above D

Question 16

What implication(s)  does the law of conservation of matter have for humans?

Accepted Answer

A)   We cannot create energy because it is neither created nor destroyed.
B)   As matter is recycled it loses some of its integrity so we need to be careful when we dispose of goods.
C)   Natural resources are unlimited because they are used and reused by living organisms.
D)   Disposable goods are not going "away" when we throw them out.
E)   All of these are implications of the law of conservation of matter.F) B) and E)
G) C) and D)

Question 17

Photosynthesis is a step in the global nitrogen cycle.

Accepted Answer

A) True 
 B)False

Question 18

How do the organisms living around Yellowstone's hot springs get energy?

Accepted Answer

A)   By eating alga.
B)   From the heat in the hot spring.
C)   From photosynthesis.
D)   From chemosynthesis.
E)   No organisms can live at the depths of black smokers.F) D) and E)
G) A) and B)

Question 19

Nitrogen is an essential component of amino acids and proteins.

Accepted Answer

A) True 
 B)False

Question 20

Which is the best example of a closed system?

Accepted Answer

A)   a space station
B)   a forest
C)   a hotel
D)   a lake
E)   a riverF) C) and D)
G) B) and E) A

Exam 2: Environmental Systems: Matter and Energy of Life

Which of the following is not a molecule?

Correct AnswerverifiedShow Answer

Primary consumers are also known as

Correct AnswerverifiedShow Answer

Photosynthesis is the process of converting __________ into __________ energy.

Correct AnswerverifiedB

Which is not a characteristic of acids?

Correct AnswerverifiedShow Answer

Based on what you know of photosynthesis, what effect would clearcutting of large forests have on the amount of carbon dioxide in the atmosphere?

Correct AnswerverifiedShow Answer

All members of a species that live in the same area at the same time make up a(an)

Correct AnswerverifiedShow Answer

A biological community consists of all

Correct AnswerverifiedShow Answer

Humans alter the sulfur cycle by

Correct AnswerverifiedShow Answer

The process of photosynthesis and cellular respiration are similar in that they both

Correct AnswerverifiedShow Answer

Which of the following statements would change this into a true statement: "Most, but not all, living organisms are made up of organic compounds"?

Correct AnswerverifiedShow Answer

Water expands when it crystallizes and freezes.

Correct AnswerverifiedShow Answer

Energy is the ability to

Correct AnswerverifiedShow Answer

An ecosystem consists of

Correct AnswerverifiedShow Answer

The law of conservation of matter tells us that matter

Correct AnswerverifiedShow Answer

Which biogeochemical cycle lacks an atmospheric component?

Correct AnswerverifiedD

What implication(s) does the law of conservation of matter have for humans?

Correct AnswerverifiedShow Answer

Photosynthesis is a step in the global nitrogen cycle.

Correct AnswerverifiedShow Answer

How do the organisms living around Yellowstone's hot springs get energy?

Correct AnswerverifiedShow Answer

Nitrogen is an essential component of amino acids and proteins.

Correct AnswerverifiedShow Answer

Which is the best example of a closed system?

Correct AnswerverifiedA

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Photosynthesis is the process of converting into energy.

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B

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D

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A