Question 1

Match each definition in the first column to the correct term in the second column.
-Tuberculosis is caused by an infectious bacterium and causes an annual death toll of 1-3 million people worldwide.It is this kind of regulating factor.

Accepted Answer

Density-dependent factors are those that are affected by the size of a population, such as disease spread. Tuberculosis is an example of a density-dependent factor.

Answer: A
 The death rate is a measure of the number of deaths in a population over a certain period of time, often expressed as deaths per 1,000 individuals. Tuberculosis causes an annual death toll of 1-3 million people worldwide.

Answer: I
 Chlorofluorocarbons (CFCs) are human-made chemicals that have been linked to the depletion of the ozone layer, which protects the Earth from harmful ultraviolet radiation.

None of the other terms listed relate directly to tuberculosis.

Question 2

Match each definition in the first column to the correct term in the second column.
-Age classes grouped into pre-reproductive,reproductive,and post-reproductive categories.

Accepted Answer

Age structure refers to the grouping of individuals in a population into pre-reproductive, reproductive, and post-reproductive categories based on their age.

Answer: B
 Carrying capacity refers to the maximum population size that a given environment can sustainably support.

Answer: C
 Ozone is a gas in Earth's upper atmosphere that helps to protect the planet from harmful ultraviolet radiation from the sun.

Answer: D
 Desertification refers to the process by which once-fertile land becomes increasingly dry and barren due to a combination of factors such as overgrazing, deforestation, and climate change.

Answer: E
 Density-dependent factors are environmental factors, such as disease, competition for resources, and predation, that become more intense as a population grows larger and more dense.

Answer: F
 Skin cancer is a type of cancer that develops in the skin cells, often as a result of overexposure to ultraviolet radiation from the sun.

Answer: G
 Emigration refers to the movement of individuals out of a particular population or geographic area.

Answer: H
 Carbon footprint refers to the total amount of greenhouse gases, such as carbon dioxide, that are emitted as a result of an individual's or organization's activities.

Answer: I
 Chlorofluorocarbons, or CFCs, are a type of synthetic chemical that were used in a variety of applications, including refrigeration, air conditioning, and aerosol sprays, before it was discovered that they were contributing to the depletion of the ozone layer.

Question 3

What difference does it make if you choose to eat a hamburger from a fast-food place rather than from a restaurant using locally grown beef?

Accepted Answer

The answer of What difference does it make if you...

Question 4

If a great volcano blew up and almost everyone nearby was killed,we would say that this was due to a ________ regulating factor.

Accepted Answer

The answer of If a great volcano blew up and...

Question 5

Match each definition in the first column to the correct term in the second column.
-A certain herbivore selectively destroys some types of plants on rangeland but not others.After those animals have left the area,those tasty plants no longer grow on the plot of land so we would say that this has been reduced there.

Accepted Answer

Carrying capacity refers to the maximum number of individuals of a particular species that an environment can support sustainably over time, given the food, habitat, water, and other necessities available in the environment. When certain herbivores selectively consume and destroy some types of plants but not others, leading to those plants no longer growing in the area, it can alter the carrying capacity of the environment for those and possibly other species by reducing the availability of resources.

Question 6

If the women of Transylpolkonia traditionally delay having their first child until they are in their late 30s but the women of Chaldokia normally start their families in their teens,which nation will be most likely to have an increasing population?

Accepted Answer

The answer of If the women of Transylpolkonia traditionally delay...

Question 7

A certain relatively dry country has begun to desalinate seawater.If you were one of the managers of an irrigation project using this water,what measures would you adopt?

Accepted Answer

The answer of A certain relatively dry country has begun...

Question 8

Match each definition in the first column to the correct term in the second column.
-Along with death,this decreases population size.

Accepted Answer

The answer of Match each definition in the first column...

Question 9

A(n)________ is determined by the rates at which individuals are added to and subtracted from the population.

Accepted Answer

The answer of A(n)________ is determined by the rates at...

Question 10

Match each definition in the first column to the correct term in the second column.
-When marginal farmland is turned into desert,the process is termed this.

Accepted Answer

Desertification is the process of turning marginal farmland into a desert.

Answer: F
 Skin cancer is a condition that occurs when skin is overexposed to ultraviolet radiation, which can be found in ozone-depleted regions.

Answer: H
 Carbon footprint is a measure of the amount of greenhouse gases released into the atmosphere by an individual, group or organization.

Answer: I
 Chlorofluorocarbons are chemicals that contribute to ozone depletion.

Answer: B
 Carrying capacity is the maximum number of individuals that a given area can support.

Answer: J
 Age structure refers to the distribution of individuals in a population across various age groups.

Answer: E
 Density-dependent factors are factors that affect a population differently based on its size or density.

Answer: G
 Emigration refers to the movement of individuals out of a population.

Answer: A
 Death rate refers to the number of deaths in a population over a specific period of time.

Question 11

Match each definition in the first column to the correct term in the second column.
-A measure of the decrease in population size due to removal of individuals by disease,predation,or natural causes.

Accepted Answer

This refers to the death rate of individuals in a population due to various causes.

B) Limiting factor
 Carrying capacity refers to the maximum number of individuals that can be sustained in a given environment, based on available resources.

C) Atmospheric layer
 Ozone is a protective layer in the atmosphere that absorbs harmful ultraviolet radiation from the sun.

D) Land degradation
 Desertification refers to the process by which land becomes more arid and degraded, often due to human activities such as overgrazing and deforestation.

E) Factors that influence population size based on density
 Density-dependent factors are those that affect a population based on its size and density, such as competition for resources and disease transmission.

F) Disease caused by exposure to UV radiation
 Skin cancer is a disease that can result from overexposure to ultraviolet radiation from the sun or other sources.

G) Movement of individuals out of a population
 Emigration refers to the movement of individuals out of a population and can be a factor that reduces population size.

H) Measure of personal greenhouse gas emissions
 A carbon footprint is a measure of an individual's or organization's greenhouse gas emissions, usually measured in terms of carbon dioxide equivalents.

I) Chemicals that deplete the ozone layer
 Chlorofluorocarbons, or CFCs, are chemicals that were once widely used in refrigeration, aerosol sprays, and other industrial applications, but they have been found to contribute to the depletion of the ozone layer.

J) Distribution of individuals in different age groups
 Age structure refers to the distribution of individuals in different age groups within a population and can provide insights into factors such as birth rates and life expectancy.

Answer: A) Mortality, B) Limiting factor, C) Atmospheric layer, D) Land degradation, E) Factors that influence population size based on density, F) Disease caused by exposure to UV radiation, G) Movement of individuals out of a population, H) Measure of personal greenhouse gas emissions, I) Chemicals that deplete the ozone layer, J) Distribution of individuals in different age groups.

Question 12

Match each definition in the first column to the correct term in the second column.
-If you found an old refrigerator that still works,it would probably have this type of compound as a refrigerant.

Accepted Answer

Chlorofluorocarbons are a type of compound commonly used as refrigerants in old appliances.

Question 13

Match each definition in the first column to the correct term in the second column.
-This form of oxygen can irritate the eyes and the respiratory system.

Accepted Answer

Ozone is a form of oxygen that can irritate the eyes and respiratory system.

Answer: F 
 Skin cancer can be caused by overexposure to ultraviolet (UV) radiation from the sun, which is depleted by the ozone layer.

Answer: I 
 Chlorofluorocarbons (CFCs) are synthetic chemicals that were used in refrigeration and aerosol sprays and have been found to contribute to the depletion of the ozone layer.

Note: The other terms have different definitions and cannot be matched to this description.

Question 14

Match each definition in the first column to the correct term in the second column.
-Ultraviolet light can cause this potentially deadly skin disease.

Accepted Answer

Ultraviolet light can cause skin cancer.

Answer: C
 Ozone depletion caused by human activities can lead to an increase in harmful ultraviolet radiation reaching the earth's surface, which can cause skin cancer.

Answer: I
 Chlorofluorocarbons (CFCs) are a type of human-made chemical that can break down ozone in the atmosphere, leading to elevated levels of ultraviolet radiation and an increased risk of skin cancer.

Note: None of the other terms are directly related to the potential risks of ultraviolet light exposure and skin cancer.

Question 15

What are the issues around the use of biofuels as an alternative to fossil fuels?

Accepted Answer

The answer of What are the issues around the use...

Question 16

Match each definition in the first column to the correct term in the second column.
-The amount of carbon dioxide a person puts into the atmosphere is said to be this.

Accepted Answer

Carbon footprint is the amount of carbon dioxide and other greenhouse gases released into the atmosphere as a result of human activities.

Answer: I 
 Chlorofluorocarbons are harmful chemicals that were once commonly used in refrigeration, air conditioning, and aerosol sprays, but have been largely phased out due to their damaging effects on the ozone layer.

Answer: D 
 Desertification refers to the process by which land becomes increasingly arid and unable to support vegetation and wildlife, often due to human activities such as overgrazing, deforestation, and soil erosion.

Answer: F 
 Skin cancer is a type of cancer that is caused by exposure to ultraviolet radiation from the sun and other sources.

Answer: G 
 Emigration refers to the act of leaving one's country or region to settle in another, usually for economic or political reasons.

Answer: J 
 Age structure refers to the distribution of individuals within a population according to their age, which can be important for understanding demographic trends and predicting future population growth or decline.

The following terms do not match any definition:
- Carrying capacity
- Density-dependent
- Death rate
- Ozone

Question 17

Discuss some of the factors that cause population size to fluctuate around the carrying capacity.

Accepted Answer

The answer of Discuss some of the factors that cause...

Question 18

Why is it important that humans attempt to control their numbers and begin to identify renewable resources?

Accepted Answer

The answer of Why is it important that humans attempt...

Question 19

The Green Revolution impacted Indonesia's food supply in a positive way.Comment on its effects on the country's ecological footprint.

Accepted Answer

The answer of The Green Revolution impacted Indonesia's food supply...

Quiz 24: Human Populations, limited Resources, and Pollution

Match each definition in the first column to the correct term in the second column. -Tuberculosis is caused by an infectious bacterium and causes an annual death toll of 1-3 million people worldwide.It is this kind of regulating factor.

Match each definition in the first column to the correct term in the second column. -Age classes grouped into pre-reproductive,reproductive,and post-reproductive categories.

What difference does it make if you choose to eat a hamburger from a fast-food place rather than from a restaurant using locally grown beef?

If a great volcano blew up and almost everyone nearby was killed,we would say that this was due to a ________ regulating factor.

If the women of Transylpolkonia traditionally delay having their first child until they are in their late 30s but the women of Chaldokia normally start their families in their teens,which nation will be most likely to have an increasing population?

A certain relatively dry country has begun to desalinate seawater.If you were one of the managers of an irrigation project using this water,what measures would you adopt?

Match each definition in the first column to the correct term in the second column. -Along with death,this decreases population size.

A(n)________ is determined by the rates at which individuals are added to and subtracted from the population.

Match each definition in the first column to the correct term in the second column. -When marginal farmland is turned into desert,the process is termed this.

Match each definition in the first column to the correct term in the second column. -A measure of the decrease in population size due to removal of individuals by disease,predation,or natural causes.

Match each definition in the first column to the correct term in the second column. -If you found an old refrigerator that still works,it would probably have this type of compound as a refrigerant.

Match each definition in the first column to the correct term in the second column. -This form of oxygen can irritate the eyes and the respiratory system.

Match each definition in the first column to the correct term in the second column. -Ultraviolet light can cause this potentially deadly skin disease.

What are the issues around the use of biofuels as an alternative to fossil fuels?

Match each definition in the first column to the correct term in the second column. -The amount of carbon dioxide a person puts into the atmosphere is said to be this.

Discuss some of the factors that cause population size to fluctuate around the carrying capacity.

Why is it important that humans attempt to control their numbers and begin to identify renewable resources?

The Green Revolution impacted Indonesia's food supply in a positive way.Comment on its effects on the country's ecological footprint.