Question 1

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizing at around 45 individuals. What is the reason for this?

Accepted Answer

A)   population at maximum density
B)   death rate higher than birth rate
C)   exponential growth
D)   limited resources to support additional birds
E)   slow lag phaseF) B) and E)
G) A) and B)

Question 2

All of the following are true of BOTH logistic growth and exponential growth EXCEPT

Accepted Answer

A)   they both have a lag phase.
B)   they both have an exponential growth phase.
C)   they both have a stable equilibrium phase.
D)   they are both a type of population growth.
E)   they are influenced by resource availability.F) C) and E)
G) None of the above

Question 3

All of the following impact biotic potential EXCEPT

Accepted Answer

A)   resource abundance.
B)   the number of offspring produced each reproductive cycle.
C)   chances of survivorship until sexual maturity.
D)   how frequently each individual in the population reproduces.
E)   the age at which reproduction ends.F) A) and C)
G) C) and D)

Question 4

What is the carrying capacity for the population of beetles indicated by the graph?

Accepted Answer

A)   ~ 5,000
B)   ~ 10,000
C)   ~ 100,000
D)   ~ 2,500
E)   cannot be determined from the graphF) B) and E)
G) A) and D)

Question 5

Schools of parrot fish tend to remain within close proximity to coral reefs for protection from predators and for easy access to food sources. What type of distribution does this represent?

Accepted Answer

A)   clumped
B)   random
C)   dense
D)   uniform
E)   independentF) A) and E)
G) D) and E)

Question 6

The birthrate in a small town is 14 per 1,000 per year and the death rate is 5 per 1,000 per year. What is the annual growth rate for this town?

Accepted Answer

A)   9%
B)   0.9%
C)   19%
D)   1.9%
E)   0.19%F) D) and E)
G) A) and B)

Question 7

Organisms are more likely to face extinction if they have which of the following characteristics?

Accepted Answer

A)   restricted geographic ranges
B)   broad habitat tolerance
C)   large local populations
D)   extensive geographic ranges
E)   high biotic potentialF) A) and C)
G) A) and B)

Question 8

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizing at around 45 individuals. Forty-five individuals is

Accepted Answer

A)   the density.
B)   the growth rate.
C)   a density dependent factor.
D)   a density independent factor.
E)   the carrying capacity.F) A) and D)
G) D) and E)

Question 9

Which statement about ecology and environmental science is correct?

Accepted Answer

A)   Ecology is a field of science that helps negate the information that is derived from the field of environmental science.
B)   During the study of ecology only living organisms are studied while the non living aspects are studied within the field of environmental science.
C)   During the study of environmental science living organisms are studied while the non living aspects are studied within the field of ecology.
D)   The field of environmental science applies the ecological principles to human based concerns.
E)   The field of ecology focuses on human based issues and uses them to help determine if there is going to be an environmental change.F) A) and D)
G) B) and E)

Question 10

Different populations living in the same geographical region is a(n)  ________.

Accepted Answer

A)   organism
B)   population
C)   community
D)   ecosystem
E)   biosphereF) C) and E)
G) A) and E)

Question 11

A population growth curve that exhibits both exponential growth and a stable equilibrium phase is

Accepted Answer

A)   growing exponentially.
B)   growing logistically.
C)   unsustainable.
D)   not yet at its carrying capacity.
E)   exhibiting a J-shaped curve.F) A) and B)
G) A) and C)

Question 12

If the fishing village of Hopkins Belize is experiencing a decreasing population. What should they do if they wish to reverse this trend and see the greatest amount of population growth in the next 10 years?

Accepted Answer

A)   Increase the number of individuals in the pre reproductive stage
B)   Increase the number of individuals in the post reproductive stage
C)   Increase the number of individuals in the reproductive stage
D)   Increase the amount of medical care available for its residents
E)   Increase the economic opportunities for the members of the communityF) B) and C)
G) A) and C)

Question 13

Which of the following populations has the greatest biotic potential?

Accepted Answer

A)   Population A in which females start to reproduce at 1 year and produce 2 offspring each year.
B)   Population B in which females reach sexual maturity in 6 months and produce 1 offspring each reproductive cycle.
C)   Population C in which males reach sexual maturity in just 3 months.
D)   Population D in which individuals reach sexual maturity in 6 months and produce 5 offspring each year.
E)   Population E in which individuals produce 20 offspring starting at 5 years of age.F) C) and E)
G) C) and D)

Question 14

If a population of 200 squirrels has a 10 percent growth rate each year, how many individuals will there be in the population after 3 years (assume that no deaths occur during this period) ?

Accepted Answer

A)   approximately 250
B)   approximately 275
C)   approximately 300
D)   approximately 350
E)   approximately 400F) A) and E)
G) B) and D)

Question 15

Emperor penguins defend an area around their nests. Their territory encompasses a complete circle around the nest with approximately a 0.5m radius. If each nesting penguin has this same size and shape territory, what type of distribution will these animals exhibit?

Accepted Answer

A)   clumped
B)   random
C)   dense
D)   uniform
E)   independentF) A) and D)
G) C) and E)

Exam 30: Ecology and Populations

Schools of parrot fish tend to remain within close proximity to coral reefs for protection from predators and for easy access to food sources. What type of distribution does this represent?

Correct Answer
verified

What is the carrying capacity for the population of beetles indicated by the graph?

Correct Answer
verified

If the fishing village of Hopkins Belize is experiencing a decreasing population. What should they do if they wish to reverse this trend and see the greatest amount of population growth in the next 10 years?

Correct Answer
verified

All of the following are true of BOTH logistic growth and exponential growth EXCEPT

Correct Answer
verified

Which statement about ecology and environmental science is correct?

Correct Answer
verified

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizing at around 45 individuals. Forty-five individuals is

Correct Answer
verified

Which of the following populations has the greatest biotic potential?

Correct Answer
verified

All of the following impact biotic potential EXCEPT

Correct Answer
verified

Organisms are more likely to face extinction if they have which of the following characteristics?

Correct Answer
verified

If a population of 200 squirrels has a 10 percent growth rate each year, how many individuals will there be in the population after 3 years (assume that no deaths occur during this period) ?

Correct Answer
verified

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizing at around 45 individuals. What is the reason for this?

Correct Answer
verified

Emperor penguins defend an area around their nests. Their territory encompasses a complete circle around the nest with approximately a 0.5m radius. If each nesting penguin has this same size and shape territory, what type of distribution will these animals exhibit?

Correct Answer
verified

The birthrate in a small town is 14 per 1,000 per year and the death rate is 5 per 1,000 per year. What is the annual growth rate for this town?

Correct Answer
verified

Different populations living in the same geographical region is a(n) ________.

Correct Answer
verified

A population growth curve that exhibits both exponential growth and a stable equilibrium phase is

Correct Answer
verified

Exam 30: Ecology and Populations

Schools of parrot fish tend to remain within close proximity to coral reefs for protection from predators and for easy access to food sources. What type of distribution does this represent?

Correct AnswerverifiedShow Answer

What is the carrying capacity for the population of beetles indicated by the graph?

Correct AnswerverifiedShow Answer

If the fishing village of Hopkins Belize is experiencing a decreasing population. What should they do if they wish to reverse this trend and see the greatest amount of population growth in the next 10 years?

Correct AnswerverifiedShow Answer

All of the following are true of BOTH logistic growth and exponential growth EXCEPT

Correct AnswerverifiedShow Answer

Which statement about ecology and environmental science is correct?

Correct AnswerverifiedShow Answer

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizing at around 45 individuals. Forty-five individuals is

Correct AnswerverifiedShow Answer

Which of the following populations has the greatest biotic potential?

Correct AnswerverifiedShow Answer

All of the following impact biotic potential EXCEPT

Correct AnswerverifiedShow Answer

Organisms are more likely to face extinction if they have which of the following characteristics?

Correct AnswerverifiedShow Answer

If a population of 200 squirrels has a 10 percent growth rate each year, how many individuals will there be in the population after 3 years (assume that no deaths occur during this period) ?

Correct AnswerverifiedShow Answer

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizing at around 45 individuals. What is the reason for this?

Correct AnswerverifiedShow Answer

Emperor penguins defend an area around their nests. Their territory encompasses a complete circle around the nest with approximately a 0.5m radius. If each nesting penguin has this same size and shape territory, what type of distribution will these animals exhibit?

Correct AnswerverifiedShow Answer

The birthrate in a small town is 14 per 1,000 per year and the death rate is 5 per 1,000 per year. What is the annual growth rate for this town?

Correct AnswerverifiedShow Answer

Different populations living in the same geographical region is a(n) ________.

Correct AnswerverifiedShow Answer

A population growth curve that exhibits both exponential growth and a stable equilibrium phase is

Correct AnswerverifiedShow Answer

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