Question 1

The statistical study of populations including sex ratio,age structure,and predicting growth rates is called ________.

Accepted Answer

A)  ethology
B)  demography
C)  population genetics
D)  biometricsE) C) and D)
F) B) and D)

Question 2

Within a genus that normally produces large numbers of offspring,one particular species evolves maternal care behavior.What do you predict will happen to the survivorship curve?

Accepted Answer

A)  No change is likely.
B)  It may change from type I to type III.
C)  It may change from type III to type I.
D)  It may change from type I to type II.E) A) and D)
F) B) and C)

Question 3

What would be the best approach to curbing excessive human population growth?

Accepted Answer

A)  lowering birth rates through education and family planning
B)  a return to historical health care practices
C)  encouraging women to postpone children till after age 35
D)  embracing traditional agricultural practicesE) A) and C)
F) A) and D)

Question 4

An unscrupulous dog breeder has been selecting for dogs that have very large litters,with the goal of maximizing profits.Why might this strategy be counterproductive?

Accepted Answer

A)  It will cost too much money to feed all those puppies.
B)  Litter size is not influenced by genetics.
C)  The puppies from large litters are likely to be malnourished,and the mother will have few resources to devote to future litters.
D)  Intrauterine cannibalism will reduce the number of puppies.E) A) and B)
F) None of the above

Question 5

A farmer's land includes a wilderness area that is home to an endangered species of bird.He wants to sell the land to a developer,and you have been hired to evaluate the environmental concerns."This little patch of land is not crucial for the bird species!" the farmer says,"In fact,my land is surrounded by several other wilderness patches that also have that bird." You reply: "It is possible that your land acts as the ________ and the other areas are ________.If that's the case,development would be devastating to the population."

Accepted Answer

A)  sink; sources
B)  source; sinks
C)  population; metapopulation
D)  metapopulation; populationE) B) and C)
F) A) and D)

Question 6

Effects that are dependent on the size of the population and regulate the growth of populations are called ________ effects.

Accepted Answer

A)  K-related
B)  density-independent
C)  environmental resistance
D)  density-dependent
E)  demographicF) A) and E)
G) B) and C)

Question 7

The rate at which a population of a given species will increase when no limits are placed on its rate of growth is called its

Accepted Answer

A)  maximum growth.
B)  carrying capacity.
C)  biotic potential.
D)  optimal growth.E) None of the above
F) A) and B)

Question 8

A zoo in Southern California has been successfully breeding arctic wolves and they want to exchange some of their extra wolves for kangaroos from a zoo in southwestern Australia.Since it is July,it is quite cold in the other zoo compared to Southern California.What discussion might the zookeepers have about transferring the wolves?

Accepted Answer

A)  Since Arctic wolves are well-adapted to cold,this should pose no problems.
B)  After several generations in Southern California,the wolves have lost their adaptive genes for cold temperatures.
C)  After growing up in Southern California,the individual wolves have lost their ability to adapt to cold temperatures,but their progeny will still get the cold-adapted genes.
D)  Although the wolves are genetically adapted to cold weather have not grown their cold weather coats.E) C) and D)
F) A) and C)

Question 9

-What often describes organisms with a Type III life history?

Accepted Answer

A)  K-selected
B)  r-selected
C)  idiopathic
D)  at their carrying capacity
E)  subject to low predation ratesF) A) and C)
G) A) and B)

Question 10

Life history adaptations of ________ populations are characterized by an early age of first reproduction and short maturation time and life span.

Accepted Answer

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

Question 11

What kind of population spacing would you expect for a species that is strongly territorial?

Accepted Answer

A)  uniform
B)  clumped
C)  random
D)  uniform or clumped depending on whether it is a source or sink metapopulation
E)  uniform or clumped depending on the life history strategy of the speciesF) A) and C)
G) All of the above

Question 12

A group of population members all of the same age is called a ________.

Accepted Answer

A)  deme
B)  species
C)  cohort
D)  tribeE) A) and D)
F) A) and C)

Question 13

A group of international students is having a heated discussion in the dining hall."Your country needs to get its population under control!" asserts a student from the United States."Perhaps," replies the Indian student,"But your country ________."

Accepted Answer

A)  has the highest per capita resource consumption,ten times greater than mine
B)  also has a big population overgrowth problem
C)  has a much higher birth rate
D)  has the lowest infant mortality rateE) A) and B)
F) A) and C)

Question 14

-Which of the following statements about the graph is true?

Accepted Answer

A)  Oysters live longer than Hydra.
B)  Hydra and humans have parallel life spans.
C)  Humans and oysters have similar life spans.
D)  Humans have low mortality rates early in life.
E)  Oysters have high mortality rates late in life.F) All of the above
G) A) and E)

Question 15

An r-selected species is more likely to become an invasive pest than a K-selected species.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following describe source-sink metapopulations?

Accepted Answer

A)  Sink populations near source populations are less likely to go extinct.
B)  Sink populations without access to immigrants from source populations are less likely to go extinct.
C)  Source populations usually occupy better habitats.
D)  Source populations are less likely to go extinct.
E)  The emigration rate from source populations exceeds that from sink populations.F) A) and B)
G) C) and E)

Question 17

-What is the Allee effect?

Accepted Answer

A)  when fitness increases independently of population size
B)  when fitness and growth rates increase with decreasing population size
C)  when fitness and growth rates increase with increasing population size
D)  when growth rates increase independently of population sizeE) A) and B)
F) A) and C)

Question 18

Most density-dependent factors show negative feedback relative to population size.Which one of the following is more likely to show positive feedback relative to population size?

Accepted Answer

A)  competition in small populations
B)  competition in large populations
C)  fecundity in small populations
D)  fecundity in large populations
E)  mortality in large populationsF) A) and B)
G) D) and E)

Question 19

There are three aspects of entire populations that are important and often studied.Select the best choice from the ones listed.

Accepted Answer

A)  a population's range,the pattern of spacing of individuals within the range,and the size that the population attains
B)  a population's range,the amount of food available within the range,and the size that the population attains
C)  a population's range,the parental care received by each offspring within the population,and the size that the population attains
D)  a population's range,the size home range of an individual in the population,and the parental care expended for each offspringE) B) and C)
F) A) and B)

Question 20

You and your friend are on vacation at Yellowstone Park.The plaque in front of a sulfur hot spring reads: "This sulfur spring is 80°C,has a pH of 2,and contains large amounts of sulfur which is oxidized by Sulfolobus species of archaea." Your friend is excited."Boy,if those microbes are that tough they should be easy to grow in the lab.I think I'll work with those for my summer project." What do you think?

Accepted Answer

A)  You agree,and decide to partner with your friend to work on this organism as well.
B)  A species adapted to such extreme conditions would probably not be easy to culture in the very different conditions of a lab.
C)  The sulfur spring is pretty extreme,but after a few days the individual archaea should have adapted to lab culture conditions.
D)  The sulfur spring is pretty extreme,but after a few generations the species should have adapted to the lab culture conditions.E) A) and C)
F) A) and B)

Exam 54: Ecology of Individuals and Populations

An unscrupulous dog breeder has been selecting for dogs that have very large litters,with the goal of maximizing profits.Why might this strategy be counterproductive?

Correct Answer
verified

There are three aspects of entire populations that are important and often studied.Select the best choice from the ones listed.

Correct Answer
verified

Within a genus that normally produces large numbers of offspring,one particular species evolves maternal care behavior.What do you predict will happen to the survivorship curve?

Correct Answer
verified

Most density-dependent factors show negative feedback relative to population size.Which one of the following is more likely to show positive feedback relative to population size?

Correct Answer
verified

A group of population members all of the same age is called a ________.

Correct Answer
verified

-What often describes organisms with a Type III life history?

Correct Answer
verified

An r-selected species is more likely to become an invasive pest than a K-selected species.

Correct Answer
verified

Life history adaptations of ________ populations are characterized by an early age of first reproduction and short maturation time and life span.

Correct Answer
verified

Effects that are dependent on the size of the population and regulate the growth of populations are called ________ effects.

Correct Answer
verified

Correct Answer
verified

What would be the best approach to curbing excessive human population growth?

Correct Answer
verified

The rate at which a population of a given species will increase when no limits are placed on its rate of growth is called its

Correct Answer
verified

The statistical study of populations including sex ratio,age structure,and predicting growth rates is called ________.

Correct Answer
verified

Correct Answer
verified

-Which of the following statements about the graph is true?

Correct Answer
verified

Correct Answer
verified

Which of the following describe source-sink metapopulations?

Correct Answer
verified

A group of international students is having a heated discussion in the dining hall."Your country needs to get its population under control!" asserts a student from the United States."Perhaps," replies the Indian student,"But your country ________."

Correct Answer
verified

What kind of population spacing would you expect for a species that is strongly territorial?

Correct Answer
verified

-What is the Allee effect?

Correct Answer
verified

Exam 54: Ecology of Individuals and Populations

An unscrupulous dog breeder has been selecting for dogs that have very large litters,with the goal of maximizing profits.Why might this strategy be counterproductive?

Correct AnswerverifiedShow Answer

There are three aspects of entire populations that are important and often studied.Select the best choice from the ones listed.

Correct AnswerverifiedShow Answer

Within a genus that normally produces large numbers of offspring,one particular species evolves maternal care behavior.What do you predict will happen to the survivorship curve?

Correct AnswerverifiedShow Answer

Most density-dependent factors show negative feedback relative to population size.Which one of the following is more likely to show positive feedback relative to population size?

Correct AnswerverifiedShow Answer

A group of population members all of the same age is called a ________.

Correct AnswerverifiedShow Answer

-What often describes organisms with a Type III life history?

Correct AnswerverifiedShow Answer

An r-selected species is more likely to become an invasive pest than a K-selected species.

Correct AnswerverifiedShow Answer

Life history adaptations of ________ populations are characterized by an early age of first reproduction and short maturation time and life span.

Correct AnswerverifiedShow Answer

Effects that are dependent on the size of the population and regulate the growth of populations are called ________ effects.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

What would be the best approach to curbing excessive human population growth?

Correct AnswerverifiedShow Answer

The rate at which a population of a given species will increase when no limits are placed on its rate of growth is called its

Correct AnswerverifiedShow Answer

The statistical study of populations including sex ratio,age structure,and predicting growth rates is called ________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

-Which of the following statements about the graph is true?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following describe source-sink metapopulations?

Correct AnswerverifiedShow Answer

A group of international students is having a heated discussion in the dining hall."Your country needs to get its population under control!" asserts a student from the United States."Perhaps," replies the Indian student,"But your country ________."

Correct AnswerverifiedShow Answer

What kind of population spacing would you expect for a species that is strongly territorial?

Correct AnswerverifiedShow Answer

-What is the Allee effect?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified