Question 1

Parental care of the young is usually associated with species with a type ________ survivorship curve.

Accepted Answer

A)  I
B)  II
C)  III
D)  I or II (depending on the sex ratio) 
E)  I or III (depending on whether the reproductive strategy is iteroparous or semelparous) F) A) and D)
G) A) and E)

Question 2

What is the most reasonable conclusion that can be made from data graphed in the figure?

Accepted Answer

A)  After high mortality early in life,survivorship becomes constant for the rest of life.
B)  Survivorship is constant throughout life.
C)  After low mortality early in life,mortality increases to a constant rate for the rest of life.
D)  After following a constant rate early in life,mortality becomes low late in life.E) A) and C)
F) B) and C)

Question 3

Which factor allows bacteria species to adapt to environmental changes faster than fish?

Accepted Answer

A)  shorter generation time
B)  smaller size
C)  smaller nutrient needs
D)  lack of a nuclear membraneE) C) and D)
F) B) and D)

Question 4

Which of the following is an example of a species with r-selected adaptations?

Accepted Answer

A)  house fly
B)  blue whale
C)  gorilla
D)  horse
E)  cockroachesF) A) and B)
G) B) and E)

Question 5

Which is an example of a species with K-selected adaptations?

Accepted Answer

A)  dandelion
B)  fruit fly
C)  herring
D)  bobcatE) A) and C)
F) None of the above

Question 6

Allen's rule states that mammals from colder climates have shorter ears and appendages than individuals of the same species from warmer areas.The related Bergman's rule states that mammal body size varies with latitude,with larger body size in populations located closer to the poles and smaller body size in populations located closer to the equator.What can explain both of these rules?

Accepted Answer

A)  Larger bodies can store proportionally more fat as insulation than smaller bodies.
B)  Smaller bodies can store proportionally more fat as insulation than larger bodies.
C)  Heat loss increases as the surface area to volume ratio of the animal increases.
D)  Larger bodies have a proportionally larger surface area,and heat radiation varies with volume.
E)  Smaller bodies have a proportionally smaller surface area,and heat radiation increases with surface area.F) C) and E)
G) A) and D)

Question 7

-Which species would be most likely to have a Type III life history?

Accepted Answer

A)  whale
B)  coconut palm
C)  lion
D)  gorilla
E)  pine treeF) A) and E)
G) A) and D)

Question 8

The biotic potential representing growth without limits at its maximal rate is indicated by what symbol?

Accepted Answer

A)  ri
B)  N
C)  K
D)  dN/dt
E)  N/KF) B) and E)
G) C) and D) A

Question 9

Populations of endotherms that live in colder climates tend to have shorter ears and limbs than populations of the same species in warm climates.This is called ________ Rule.

Accepted Answer

A)  Allen's
B)  the K-Selected
C)  the r-Selected
D)  Edward'sE) All of the above
F) A) and C)

Question 10

A small group of mice were released on an island.The island previously had no mice on it,but had abundant food and no predators.After several years of growth,the size of the new island population stabilizes.However,at this point a hurricane drastically reduces the population.How would you describe the situation?

Accepted Answer

A)  The biotic potential of the population has been reduced.
B)  The new population size is a result of density-dependent regulation.
C)  The new population size is a result of density-independent regulation.
D)  The island mouse population can now act as a sink metapopulation.
E)  The island mouse population can now act as a source metapopulation.F) A) and E)
G) C) and D)

Question 11

Which is an example of a clumped distribution of a population?

Accepted Answer

A)  A tree species releases a poison to defend the soil around its roots,resulting in trees spaced evenly like a grid.
B)  Antelope travel in herds.
C)  Two male hummingbirds have a confrontation on the border between their territories.
D)  Multiple species join each other at the waterhole to drink.E) A) and D)
F) C) and D)

Question 12

There are not many species of fish living deep in the oceans,but the deep-sea fish occasionally pulled up by fisherman have been bizarre creatures,such as the deep-sea anglerfish with its giant fangs and bioluminescent lure.Why have these fascinating deep-sea fish never been shown live on exhibit in an aquarium?

Accepted Answer

A)  Their diet is too specialized.
B)  They are adapted to cold temperatures and total darkness.
C)  They might frighten visitors.
D)  They are adapted for high pressure,and will die at low pressure.E) C) and D)
F) All of the above

Question 13

A graduate student is studying the feeding behavior of a small octopus that must be laboriously collected from the shores of a remote island.Her intern wishes to do experiments to look at the octopus's mating behavior.Why might the graduate student veto this idea?

Accepted Answer

A)  The octopus has semelparous reproduction,and will eat its mate.
B)  The octopus has iteroparous reproduction,and will eat its mate.
C)  The octopus has semelparous reproduction,and will die after laying one batch of eggs.
D)  The octopus has iteroparous reproduction,and will die after laying one batch of eggs.E) A) and B)
F) None of the above

Question 14

Organisms such as lizards that need to maintain body temperature through external means do so by

Accepted Answer

A)  shivering to produce heat.
B)  sunbathing.
C)  swimming in geothermal pools.
D)  running frequently to warm up.
E)  eating large meals to provide calories for heat production.F) B) and D)
G) B) and C)

Question 15

Clumped or patched populations that undergo local periodic extinction and recolonization are called what?

Accepted Answer

A)  randomly spaced populations
B)  uniformly spaced populations
C)  metapopulations
D)  oversized populations
E)  endangered populationsF) B) and D)
G) A) and D)

Question 16

You construct a life table for a plant species and find that in all cases about the same proportion of the cohort survive to the beginning of the next time interval.What would you call this?

Accepted Answer

A)  a Type I survivorship curve
B)  a Type II survivorship curve
C)  a Type III survivorship curve
D)  a semelparous life history adaptation
E)  populations regulated by density-independent eventsF) A) and C)
G) C) and E) B

Question 17

During the late 1800s,cattle egrets arrived in South America from Africa and began to colonize.Their range has expanded dramatically over the years.Why were they able to do this?

Accepted Answer

A)  The habitats that they left in Africa were not suitable for any further colonization; thus,they were forced to emigrate.
B)  The habitats that they encountered in South America were suitable to them and unoccupied.
C)  There were abundant cattle for the birds to gather around in South America; furthermore,various animals that the egrets had lived around in Africa had become quite scarce because of over hunting and poaching,causing the birds to extend their range.
D)  The food resources in South America were far superior to those in Africa,allowing the egrets more opportunity to grow and reproduce and ultimately expand their range.E) B) and D)
F) C) and D)

Question 18

A rancher is suspected of shooting wolves near Yellowstone National Park,and you have been enlisted to go have a chat with him.The rancher doesn't see any benefit to having the wolves there.What do you say?

Accepted Answer

A)  "If there are no predators like wolves,just one pair of jackrabbits can quickly create a population with explosive,logistic growth.Wolves help reduce the fecundity rate,keeping the population at a reasonable level."
B)  "If there are no predators like wolves,just one pair of jackrabbits can quickly create a population with explosive,exponential growth.Wolves help reduce the carrying capacity,keeping the population at a reasonable level."
C)  "If there are no predators like wolves,just one pair of jackrabbits can quickly create a metapopulation.Wolves help reduce the biotic potential,keeping the population at a reasonable level."
D)  "If there are no predators like wolves,just one pair of jackrabbits can quickly create a population with explosive,density-dependent growth.Wolves help reduce the age structure,keeping the population at a reasonable level."E) All of the above
F) A) and D)

Question 19

Species that have a delayed reproductive stage,are competing for limited resources,and have smaller numbers of slowly maturing large offspring show ________ adaptations.

Accepted Answer

A)  K-selected
B)  r-selectedC) A) and B)
D) undefined A

Question 20

Which is an example of a density-independent factor on a population?

Accepted Answer

A)  weather
B)  nesting sites
C)  intraspecific competition
D)  amount of prey
E)  predationF) A) and B)
G) A) and C)

Exam 54: Ecology of Individuals and Populations

Parental care of the young is usually associated with species with a type ________ survivorship curve.

Correct Answer
verified

What is the most reasonable conclusion that can be made from data graphed in the figure?

Correct Answer
verified

Which factor allows bacteria species to adapt to environmental changes faster than fish?

Correct Answer
verified

Which of the following is an example of a species with r-selected adaptations?

Correct Answer
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Which is an example of a species with K-selected adaptations?

Correct Answer
verified

Correct Answer
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-Which species would be most likely to have a Type III life history?

Correct Answer
verified

The biotic potential representing growth without limits at its maximal rate is indicated by what symbol?

Correct Answer
verified
A

Populations of endotherms that live in colder climates tend to have shorter ears and limbs than populations of the same species in warm climates.This is called ________ Rule.

Correct Answer
verified

Correct Answer
verified

Which is an example of a clumped distribution of a population?

Correct Answer
verified

Correct Answer
verified

A graduate student is studying the feeding behavior of a small octopus that must be laboriously collected from the shores of a remote island.Her intern wishes to do experiments to look at the octopus's mating behavior.Why might the graduate student veto this idea?

Correct Answer
verified

Organisms such as lizards that need to maintain body temperature through external means do so by

Correct Answer
verified

Clumped or patched populations that undergo local periodic extinction and recolonization are called what?

Correct Answer
verified

You construct a life table for a plant species and find that in all cases about the same proportion of the cohort survive to the beginning of the next time interval.What would you call this?

Correct Answer
verified
B

During the late 1800s,cattle egrets arrived in South America from Africa and began to colonize.Their range has expanded dramatically over the years.Why were they able to do this?

Correct Answer
verified

A rancher is suspected of shooting wolves near Yellowstone National Park,and you have been enlisted to go have a chat with him.The rancher doesn't see any benefit to having the wolves there.What do you say?

Correct Answer
verified

Species that have a delayed reproductive stage,are competing for limited resources,and have smaller numbers of slowly maturing large offspring show ________ adaptations.

Correct Answer
verified
A

Which is an example of a density-independent factor on a population?

Correct Answer
verified

Exam 54: Ecology of Individuals and Populations

Parental care of the young is usually associated with species with a type ________ survivorship curve.

Correct AnswerverifiedShow Answer

What is the most reasonable conclusion that can be made from data graphed in the figure?

Correct AnswerverifiedShow Answer

Which factor allows bacteria species to adapt to environmental changes faster than fish?

Correct AnswerverifiedShow Answer

Which of the following is an example of a species with r-selected adaptations?

Correct AnswerverifiedShow Answer

Which is an example of a species with K-selected adaptations?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

-Which species would be most likely to have a Type III life history?

Correct AnswerverifiedShow Answer

The biotic potential representing growth without limits at its maximal rate is indicated by what symbol?

Correct AnswerverifiedA

Populations of endotherms that live in colder climates tend to have shorter ears and limbs than populations of the same species in warm climates.This is called ________ Rule.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which is an example of a clumped distribution of a population?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

A graduate student is studying the feeding behavior of a small octopus that must be laboriously collected from the shores of a remote island.Her intern wishes to do experiments to look at the octopus's mating behavior.Why might the graduate student veto this idea?

Correct AnswerverifiedShow Answer

Organisms such as lizards that need to maintain body temperature through external means do so by

Correct AnswerverifiedShow Answer

Clumped or patched populations that undergo local periodic extinction and recolonization are called what?

Correct AnswerverifiedShow Answer

You construct a life table for a plant species and find that in all cases about the same proportion of the cohort survive to the beginning of the next time interval.What would you call this?

Correct AnswerverifiedB

During the late 1800s,cattle egrets arrived in South America from Africa and began to colonize.Their range has expanded dramatically over the years.Why were they able to do this?

Correct AnswerverifiedShow Answer

A rancher is suspected of shooting wolves near Yellowstone National Park,and you have been enlisted to go have a chat with him.The rancher doesn't see any benefit to having the wolves there.What do you say?

Correct AnswerverifiedShow Answer

Species that have a delayed reproductive stage,are competing for limited resources,and have smaller numbers of slowly maturing large offspring show ________ adaptations.

Correct AnswerverifiedA

Which is an example of a density-independent factor on a population?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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A

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B

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A

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