Question 1

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.

Question 2

Water supplies contaminated with algae that produce toxins making the water unfit to drink is a result of the human impact to the

Accepted Answer

A)   hydrologic cycle.
B)   carbon cycle.
C)   nitrogen cycle.
D)   sulfur cycle.

Question 3

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. A

Question 4

If you were to remove the top predator in a food web or food chain

Accepted Answer

A)   there would be an increase in the number of producers.
B)   the producer population will be depleted because there are more primary consumers or herbivores.
C)   another predator would move in and take its place as top predator.
D)   there would be no change in the exchange of energy since predators get very little (only 10%)  of the energy from their food source.

Question 5

The motion of a rock rolling downhill is known as __________ energy.

Accepted Answer

A)   kinetic
B)   latent
C)   potential
D)   electrical
E)   mechanical

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.

Question 7

The relationship among atoms, elements, and compounds is most like the relationship among

Accepted Answer

A)   bricks, brick houses, and large brick buildings.
B)   grains of sand, rocks, and continents.
C)   bricks, sidewalks, and paved roads.
D)   ponds, lakes, and oceans.
E)   grains of sugar, sugar, and sweetened iced tea.

Question 8

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.

Question 9

Photosynthesis is the process of converting __________ into __________ energy.

Accepted Answer

A)   chemical bond energy; kinetic
B)   sunlight; chemical bond
C)   solar energy; kinetic
D)   solar electrical energy; heat
E)   chemical bond energy; potential

Question 10

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.

Question 11

Primary consumers are also known as

Accepted Answer

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

Question 12

The first law of thermodynamics and the law of conservation of matter are similar in that

Accepted Answer

A)   under normal circumstances neither energy nor matter is created nor destroyed.
B)   both energy and matter are recycled through biological systems.
C)   both energy and matter flow in a one-way path through biological systems.
D)   under normal circumstances energy and matter are destroyed as they pass through biological systems.
E)   The first law of thermodynamics and the law of conservation of matter are not similar.

Question 13

Photosynthesis is a step in the global nitrogen cycle.

Accepted Answer

A) True 
 B)False  False

Question 14

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.

Question 15

Living vegetation and the ocean are known as "carbon sinks" because

Accepted Answer

A)   they are made of carbon.
B)   they create carbon.
C)   they destroy carbon.
D)   they store carbon.
E)   due to gravity, carbon is found closer to the ground.

Question 16

Metabolism can be seen as the process of converting

Accepted Answer

A)   energy into matter.
B)   potential energy into kinetic energy.
C)   kinetic energy into potential energy.
D)   atoms into compounds.
E)   matter into potential energy.

Question 17

Nitrogen is an essential component of amino acids and proteins.

Accepted Answer

A) True 
 B)False

Question 18

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.

Question 19

What implication(s)  does the second law of thermodynamics have for biological systems?

Accepted Answer

A)   Systems cannot create energy because energy is neither created nor destroyed.
B)   With each transformation, less available energy is available to do work so older systems have less energy.
C)   A constant supply of energy is necessary for maintenance of biological systems.
D)   Energy is unlimited because it is used and reused by living organisms.
E)   None of these is an implication of the second law of thermodynamics.

Question 20

Producers rely on ____________ to release chemical energy and consumers rely on ____________ to release chemical energy.

Accepted Answer

A)   cellular respiration; photosynthesis
B)   cellular respiration; cellular respiration
C)   photosynthesis; cellular respiration
D)   photosynthesis; photosynthesis
E)   the sun; the sun B

Exam 2: Environmental Systems: Connections, Cycles, Flows and Feedback Loops

An ecosystem consists of

Correct AnswerverifiedShow Answer

Water supplies contaminated with algae that produce toxins making the water unfit to drink is a result of the human impact to the

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 AnswerverifiedA

If you were to remove the top predator in a food web or food chain

Correct AnswerverifiedShow Answer

The motion of a rock rolling downhill is known as __________ energy.

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

The relationship among atoms, elements, and compounds is most like the relationship among

Correct AnswerverifiedShow Answer

Energy is the ability to

Correct AnswerverifiedShow Answer

Photosynthesis is the process of converting __________ into __________ energy.

Correct AnswerverifiedShow Answer

The law of conservation of matter tells us that matter

Correct AnswerverifiedShow Answer

Primary consumers are also known as

Correct AnswerverifiedShow Answer

The first law of thermodynamics and the law of conservation of matter are similar in that

Correct AnswerverifiedShow Answer

Photosynthesis is a step in the global nitrogen cycle.

Correct AnswerverifiedFalse

A biological community consists of all

Correct AnswerverifiedShow Answer

Living vegetation and the ocean are known as "carbon sinks" because

Correct AnswerverifiedShow Answer

Metabolism can be seen as the process of converting

Correct AnswerverifiedShow Answer

Nitrogen is an essential component of amino acids and proteins.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What implication(s) does the second law of thermodynamics have for biological systems?

Correct AnswerverifiedShow Answer

Producers rely on ____________ to release chemical energy and consumers rely on ____________ to release chemical energy.

Correct AnswerverifiedB

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A

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Photosynthesis is the process of converting into energy.

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False

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Producers rely on to release chemical energy and consumers rely on to release chemical energy.

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B