Question 1

Gross primary productivity (GPP) is the biomass produced by photosynthesis minus the rate at which biomass is used for aerobic respiration.

Accepted Answer

A) True 
 B)False

Question 2

Autotroph is another word for a consumer in a trophic system.

Accepted Answer

A) True 
 B)False

Question 3

____________________ from the sun is captured, converted into chemical energy, and stored as biomass in the tissues of the producer.

Accepted Answer

The answer of ____________________ from the sun is captured, converted...

Question 4

Human activities are altering both the __________ of energy flow and the __________ of nutrients within the carbon cycle.

Accepted Answer

The answer of Human activities are altering both the __________...

Question 5

The most fundamental structural and functional units of life are

Accepted Answer

A) atoms 
B) molecules 
C) compounds 
D) cells 
E) mitochondrion 
A) atoms 
B) molecules 
C) compounds 
D) cells 
E) mitochondrion

Question 6

Use the Figure above to answer the following question(s).
-Letter D, at the base of the pyramid given above, represents what group of organisms?

Accepted Answer

The answer of   
Use the Figure above to...

Question 7

The larger the number of trophic levels in a food chain or web, the greater the accumulated loss of energy.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is not an end product of anaerobic respiration?

Accepted Answer

A) acetic acid 
B) methane 
C) oxygen 
D) ethyl alcohol 
E) hydrogen sulfide 
A) acetic acid 
B) methane 
C) oxygen 
D) ethyl alcohol 
E) hydrogen sulfide

Question 9

Destruction of the tropical rain forest will likely change regional weather patterns in ways that will prevent their return.

Accepted Answer

A) True 
 B)False

Question 10

Thinking about the concept of trophic levels, explain why it may be necessary for humans to eat less meat.How much energy is lost from one level to the next? Use numbers to support your argument

Accepted Answer

Biological systems are notoriously ineff

Question 11

Which of the following is a primary link between photosynthesis and aerobic respiration?

Accepted Answer

A) phosphorus 
B) sulfur 
C) hydrogen 
D) carbon 
E) nitrogen 
A) phosphorus 
B) sulfur 
C) hydrogen 
D) carbon 
E) nitrogen

Question 12

Which of the following about microorganisms is false?

Accepted Answer

A) Bacteria and other microbes help purify the water we drink. 
B) Bacteria and fungi help produce the foods we eat. 
C) Bacteria help break down food in our intestines. 
D) Microbes help speed up global warming. 
E) Microbes help control diseases of plants. 
A) Bacteria and other microbes help purify the water we drink. 
B) Bacteria and fungi help produce the foods we eat. 
C) Bacteria help break down food in our intestines. 
D) Microbes help speed up global warming. 
E) Microbes help control diseases of plants.

Question 13

The hydrologic cycle is the movement of

Accepted Answer

A) carbon 
B) hydrogen 
C) hydrocarbons 
D) carbohydrates 
E) water 
A) carbon 
B) hydrogen 
C) hydrocarbons 
D) carbohydrates 
E) water

Question 14

Which of the following terrestrial ecosystems or life zones produces the lowest net primary productivity per year?

Accepted Answer

A) taiga 
B) extreme desert 
C) desert scrub 
D) temperate grassland 
E) agricultural land 
A) taiga 
B) extreme desert 
C) desert scrub 
D) temperate grassland 
E) agricultural land

Question 15

All of the following are ways humans interfere in the phosphorus cycle except

Accepted Answer

A) erosion from fertilized crop fields, lawns, increases phosphate ions in streams 
B) increasing phosphate levels in tropical forests by clearing forests 
C) removing large quantities of phosphate from the earth for fertilizer 
D) stimulating aquatic systems to overproduce through runoff of phosphate ions 
E) all of these interfere in the phosphorus cycle 
A) erosion from fertilized crop fields, lawns, increases phosphate ions in streams 
B) increasing phosphate levels in tropical forests by clearing forests 
C) removing large quantities of phosphate from the earth for fertilizer 
D) stimulating aquatic systems to overproduce through runoff of phosphate ions 
E) all of these interfere in the phosphorus cycle

Question 16

A larger number of humans could be supported on the earth if more of them consumed grains, vegetables, and fruits rather than eating meat.

Accepted Answer

A) True 
 B)False

Question 17

Over land, most water that reaches the atmosphere comes from transpiration.

Accepted Answer

A) True 
 B)False

Question 18

Despite a low net primary productivity (NPP), which ecosystem or life zone produces the most biomass each year?

Accepted Answer

A) swamps and marshes 
B) tropical rain forest 
C) temperate forests 
D) open ocean 
E) estuaries 
A) swamps and marshes 
B) tropical rain forest 
C) temperate forests 
D) open ocean 
E) estuaries

Question 19

Aerobic respiration requires

Accepted Answer

A) glucose and carbon dioxide 
B) glucose and oxygen 
C) oxygen and water 
D) carbon dioxide and water 
E) carbon dioxide and oxygen 
A) glucose and carbon dioxide 
B) glucose and oxygen 
C) oxygen and water 
D) carbon dioxide and water 
E) carbon dioxide and oxygen

Question 20

If the earth were an apple, all life would be contained in the thickness of the skin.

Accepted Answer

A) True 
 B)False

Exam 3: Ecosystems: What Are They and How Do They Work

Gross primary productivity (GPP) is the biomass produced by photosynthesis minus the rate at which biomass is used for aerobic respiration.

Autotroph is another word for a consumer in a trophic system.

____________________ from the sun is captured, converted into chemical energy, and stored as biomass in the tissues of the producer.

Human activities are altering both the __________ of energy flow and the __________ of nutrients within the carbon cycle.

The most fundamental structural and functional units of life are

Use the Figure above to answer the following question(s). -Letter D, at the base of the pyramid given above, represents what group of organisms?

The larger the number of trophic levels in a food chain or web, the greater the accumulated loss of energy.

Which of the following is not an end product of anaerobic respiration?

Destruction of the tropical rain forest will likely change regional weather patterns in ways that will prevent their return.

Thinking about the concept of trophic levels, explain why it may be necessary for humans to eat less meat.How much energy is lost from one level to the next? Use numbers to support your argument

Which of the following is a primary link between photosynthesis and aerobic respiration?

Which of the following about microorganisms is false?

The hydrologic cycle is the movement of

Which of the following terrestrial ecosystems or life zones produces the lowest net primary productivity per year?

All of the following are ways humans interfere in the phosphorus cycle except

A larger number of humans could be supported on the earth if more of them consumed grains, vegetables, and fruits rather than eating meat.

Over land, most water that reaches the atmosphere comes from transpiration.

Despite a low net primary productivity (NPP), which ecosystem or life zone produces the most biomass each year?

Aerobic respiration requires

If the earth were an apple, all life would be contained in the thickness of the skin.

Environmental Problems, Their Causes, and Sustainability

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Biodiversity, Species Interactions, and Population Control

The Human Population and Its Impact

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Sustaining Biodiversity: the Species Approach

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Sustaining Aquatic Biodiversity

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Human activities are altering both the of energy flow and the of nutrients within the carbon cycle.