Question 1

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) B) and C)
F) A) and C)

Question 2

A species colonizes an island, goes through a phase of exponential growth, and reaches the carrying capacity of the island.At what stage is the growth rate slowest?

Accepted Answer

A)  initial colonization
B)  exponential phase
C)  approaching K
D)  after reaching KE) B) and D)
F) B) and C)

Question 3

In the sigmoid growth curve, the number of individuals at any one time is indicated by what symbol?

Accepted Answer

A)  ri
B)  N
C)  K
D)  dN/dtE) None of the above
F) A) and B)

Question 4

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 preyE) C) and D)
F) B) and D)

Question 5

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

Question 6

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) A) and C)
F) B) and C)

Question 7

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. Clarify question:E) A) and C)
F) B) and D)

Exam 55: Ecology of Individuals and Populations

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

Correct Answer
verified

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

Correct Answer
verified

In the sigmoid growth curve, the number of individuals at any one time is indicated by what symbol?

Correct Answer
verified

A species colonizes an island, goes through a phase of exponential growth, and reaches the carrying capacity of the island.At what stage is the growth rate slowest?

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

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

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

Exam 55: Ecology of Individuals and Populations

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In the sigmoid growth curve, the number of individuals at any one time is indicated by what symbol?

Correct AnswerverifiedShow Answer

A species colonizes an island, goes through a phase of exponential growth, and reaches the carrying capacity of the island.At what stage is the growth rate slowest?

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

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

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

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified