Question 1

Which of the following descriptions is not associated with the correct survivorship curve?

Accepted Answer

A)   Black bear females usually produce just one cub. The cub nurses from the female for several months and can remain with the mother for up to two years. - Type I
B)   Each spring an oak tree drops thousands of seeds, but only a few will ever reach sexual maturity. - Type III
C)   Daphnia are planktonic crustaceans that produce offspring every three weeks. One Daphnia produces eightOffspring, and after 1.5 weeks, four of these individuals are still alive. - Type II
D)   Bald eagles return to the same mates and nests each year. They typically have two to three eggs and with parental care provided by both parents, the survival rate of the chicks is high. - Type II
E)   As adults, female leatherback sea turtles return to the beaches where they hatched to lay their own brood.

Question 2

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 nonliving aspects are studied within the field of environmental science.
C)   During the study of environmental science, living organisms are studied, while the nonliving 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.

Question 3

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.

Question 4

Meghan is studying interactions between caribou and their wolf predators. This is an example of _____ ecology.

Accepted Answer

A)   population
B)   community
C)   ecosystem
D)   biosphere
E)   demographic

Question 5

During a recent hurricane, 25 individuals of the same butterfly species were blown onto a barrier island in southern Florida. The hurricane which lead to the arrival of the butterflies on the island is an example of a _____ factor.

Accepted Answer

A)   clumped
B)   random
C)   density-dependent
D)   density-independent
E)   dispersed

Question 6

Honeybees have been declining at dramatic rates in the last few years. Colony collapse disorder has been linked to a virus and results in hives completely emptied of bees among both wild populations and domestic hives. Recently, scientists have suggested that infected bees may contaminate flowers that they visit and thus spread the disease. This is an example of a

Accepted Answer

A)   clumped distribution.
B)   density-dependent factor.
C)   random factor.
D)   density-independent factor.
E)   biotic potential.

Question 7

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 assuming that no deaths occur during this period) ?

Accepted Answer

A)   approximately 250
B)   approximately 266
C)   approximately 300
D)   approximately 350
E)   approximately 400

Question 8

During a recent hurricane, 25 individuals of the same butterfly species were blown onto a barrier island in southern Florida. Prior to this event, this species did not inhabit the island, but with the ample vegetation on the island and a lack of predators, the displaced individuals were able to survive and reproduce. After several years, the population stabilized with approximately 150 individuals. The 150 individuals on the island is an example of the

Accepted Answer

A)   density-dependent factors.
B)   biotic potential.
C)   exponential growth.
D)   logistic growth.
E)   carrying capacity.

Question 9

Prairie dogs are highly social, burrow-dwelling rodents. Families have a strict social hierarchy and their "towns" can span hundreds of acres. In one colony, 750 animals live in a 500 m2 area. What is the population density?

Accepted Answer

A)   15
B)   1.5
C)   150
D)   2.5
E)   25

Question 10

In which of the following areas is human population growth the lowest?

Accepted Answer

A)   Africa
B)   North America
C)   Australia
D)   Europe
E)   South America

Question 11

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 graph

Question 12

Which of the following is an example of exponential growth?

Accepted Answer

A)   2,000→2,000→2,000
B)   1,500→1,600→1,700
C)   1,500→1,550 →2,010
D)   1,000→1,500 → 2,000
E)   2,000→1,500 →1,000

Question 13

The growth rate continues to rise in some Asian countries. This is because

Accepted Answer

A)   there is a higher number of reproductive individuals compared to postreproductive individuals.
B)   there is a higher number of postreproductive and reproductive individuals compared to prereproductive individuals.
C)   there is a higher number of prereproductive and reproductive individuals compared to postreproductive individuals.
D)   there is an equal number of prereproductive and reproductive individuals.
E)   there are more postreproductive individuals compared to prereproductive individuals.

Question 14

What is the correct ratio of fossil fuel consumption between the MDCs and LDCs?

Accepted Answer

A)   MDCs 60% vs. LDCs 40%
B)   MDCs 40% vs. LDCs 60%
C)   MDCs 22% vs. LDCs 78%
D)   MDCs 50% vs. LDCs 50%
E)   MDCs 80% vs. LDCs 20%

Question 15

Which of the following is true about populations with a negative growth rate?

Accepted Answer

A)   The death rate exceeds the birthrate.
B)   The population will remain the same size for several generations.
C)   The age structure diagram looks like a pyramid.
D)   The population has reached its carrying capacity.
E)   The majority of the population is prereproductive.

Question 16

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 12-month 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.

Question 17

In European countries such as Italy, people are delaying childbirth and/or choosing to have no children or only one child. Which of the following age structure diagrams illustrates this type of trend?

Accepted Answer

A)   increasing population
B)   decreasing population
C)   stable population
D)   This trend is not depicted in these diagrams.

Question 18

Above is a life history table for a minnow small fish) . Based on this table, how many years until the population drops to less than 50% of its original population?

Accepted Answer

A)   
B)   > 1
C)   1-2
D)   2
E)   3

Question 19

Which of the following statements is correct about the comparison between MDCs and LDCs?

Accepted Answer

A)   MDCs consume 4 times as many metals and 3 times as much paper as LDCs.
B)   MDCs consume twice as much paper and 4 times as many metals as LDCs.
C)   The population of MDCs is growing twice as fast as the population of LDCs.
D)   MDCs produce 10 times as much hazardous waste and consume 3 times as much paper as LDCs.
E)   MDCs consume 3 times as many metals and 4 times as much paper as LDCs.

Question 20

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)   independent

Exam 30: Ecology of Populations

Correct Answer
verified

Meghan is studying interactions between caribou and their wolf predators. This is an example of _____ ecology.

Correct Answer
verified

Which statement about ecology and environmental science is correct?

Correct Answer
verified

Prairie dogs are highly social, burrow-dwelling rodents. Families have a strict social hierarchy and their "towns" can span hundreds of acres. In one colony, 750 animals live in a 500 m² area. What is the population density?

Correct Answer
verified

In European countries such as Italy, people are delaying childbirth and/or choosing to have no children or only one child. Which of the following age structure diagrams illustrates this type of trend?

Correct Answer
verified

In which of the following areas is human population growth the lowest?

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified

Which of the following populations has the greatest biotic potential?

Correct Answer
verified

Which of the following statements is correct about the comparison between MDCs and LDCs?

Correct Answer
verified

Which of the following is an example of exponential growth?

Correct Answer
verified

The growth rate continues to rise in some Asian countries. This is because

Correct Answer
verified

Which of the following descriptions is not associated with the correct survivorship curve?

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 assuming that no deaths occur during this period) ?

Correct Answer
verified

Above is a life history table for a minnow small fish) . Based on this table, how many years until the population drops to less than 50% of its original population?

Correct Answer
verified

During a recent hurricane, 25 individuals of the same butterfly species were blown onto a barrier island in southern Florida. The hurricane which lead to the arrival of the butterflies on the island is an example of a _____ factor.

Correct Answer
verified

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

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

Correct Answer
verified

Which of the following is true about populations with a negative growth rate?

Correct Answer
verified

What is the correct ratio of fossil fuel consumption between the MDCs and LDCs?

Correct Answer
verified

Exam 30: Ecology of Populations

Correct AnswerverifiedShow Answer

Meghan is studying interactions between caribou and their wolf predators. This is an example of _____ ecology.

Correct AnswerverifiedShow Answer

Which statement about ecology and environmental science is correct?

Correct AnswerverifiedShow Answer

Prairie dogs are highly social, burrow-dwelling rodents. Families have a strict social hierarchy and their "towns" can span hundreds of acres. In one colony, 750 animals live in a 500 m2 area. What is the population density?

Correct AnswerverifiedShow Answer

In European countries such as Italy, people are delaying childbirth and/or choosing to have no children or only one child. Which of the following age structure diagrams illustrates this type of trend?

Correct AnswerverifiedShow Answer

In which of the following areas is human population growth the lowest?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following populations has the greatest biotic potential?

Correct AnswerverifiedShow Answer

Which of the following statements is correct about the comparison between MDCs and LDCs?

Correct AnswerverifiedShow Answer

Which of the following is an example of exponential growth?

Correct AnswerverifiedShow Answer

The growth rate continues to rise in some Asian countries. This is because

Correct AnswerverifiedShow Answer

Which of the following descriptions is not associated with the correct survivorship curve?

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 assuming that no deaths occur during this period) ?

Correct AnswerverifiedShow Answer

Above is a life history table for a minnow small fish) . Based on this table, how many years until the population drops to less than 50% of its original population?

Correct AnswerverifiedShow Answer

During a recent hurricane, 25 individuals of the same butterfly species were blown onto a barrier island in southern Florida. The hurricane which lead to the arrival of the butterflies on the island is an example of a _____ factor.

Correct AnswerverifiedShow Answer

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

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

Correct AnswerverifiedShow Answer

Which of the following is true about populations with a negative growth rate?

Correct AnswerverifiedShow Answer

What is the correct ratio of fossil fuel consumption between the MDCs and LDCs?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Prairie dogs are highly social, burrow-dwelling rodents. Families have a strict social hierarchy and their "towns" can span hundreds of acres. In one colony, 750 animals live in a 500 m² area. What is the population density?

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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