Question 1

A mating system in which at least some females mate with more than one male is termed ________.

Accepted Answer

A)  vivapary 
B)  polygyny 
C)  polygamy 
D)  polyandry 
A)  vivapary 
B)  polygyny 
C)  polygamy 
D)  polyandry

Question 2

Adam Jones and colleagues (2002)demonstrated that in rough-skinned newts,all females tend to mate with at least one male,and often with several.What is the overall mating success for male rough-skinned newts,and what physical characteristic was selected for in males?

Accepted Answer

The majority of males failed to mate,and

Question 3

Selection for the ability to successfully compete with members of their own sex to mate with opposite sex is termed ________.

Accepted Answer

A)  mating selection 
B)  competitive selection 
C)  intrasexual selection 
D)  intersexual selection 
A)  mating selection 
B)  competitive selection 
C)  intrasexual selection 
D)  intersexual selection

Question 4

Experiments by Steve Tanner and colleagues (2000)with gray tree frogs demonstrated that female frogs preferentially mated with male frogs exhibiting ________.

Accepted Answer

A)  many short, repetitive calls over single long calls 
B)  longer calls rather than shorter calls 
C)  larger body size over small body size 
D)  louder calls over softer calls 
E)  trilling calls over constant calls 
A)  many short, repetitive calls over single long calls 
B)  longer calls rather than shorter calls 
C)  larger body size over small body size 
D)  louder calls over softer calls 
E)  trilling calls over constant calls

Question 5

The energy and time expended constructing and caring for offspring is known as ________.[two words]

Accepted Answer

The answer of The energy and time expended constructing and...

Question 6

Which of the following statements is true regarding the involvement of sexual selection on male function (pollen donation)leading to sexual dimorphism in flowers?

Accepted Answer

A)  Female flowers typically receive far more pollen than is needed to fertilize their seeds. 
B)  Delph and colleagues (1996) found that out of 42 animal-pollinated plant species, 29% of females had the largest reproductive parts, but males had the largest perianths. 
C)  Studying wild radishes, Stanton and colleagues (1996) found that reproductive success through pollen donation was limited by pollinator visits, whereas reproductive success through seed production was not. 
D)  All of the above statements are true. 
A)  Female flowers typically receive far more pollen than is needed to fertilize their seeds. 
B)  Delph and colleagues (1996) found that out of 42 animal-pollinated plant species, 29% of females had the largest reproductive parts, but males had the largest perianths. 
C)  Studying wild radishes, Stanton and colleagues (1996) found that reproductive success through pollen donation was limited by pollinator visits, whereas reproductive success through seed production was not. 
D)  All of the above statements are true.

Question 7

Provide an example from the text illustrating the following: If one parent invests in his or her offspring more than the other parent,the heavily investing parent is often limited by resources and time.Also,the lightly investing parent is limited by its access to mates.

Accepted Answer

In the animal kingdom, a classic example

Question 8

Small,nonterritorial male marine iguanas typically have their mating interrupted by larger males prior to ejaculation.What alternative mating strategy have these small males developed to compensate for this?

Accepted Answer

A)  Small males form coalitions and distract larger males to allow enough time for copulation. 
B)  Small males induce ejaculation prior to copulation, and store the ejaculate in their cloacal pouches. 
C)  Small males have developed the ability to induce ejaculation much more quickly than large males. 
D)  Small males have developed sperm that are more efficient at fertilization than the sperm of larger males. 
A)  Small males form coalitions and distract larger males to allow enough time for copulation. 
B)  Small males induce ejaculation prior to copulation, and store the ejaculate in their cloacal pouches. 
C)  Small males have developed the ability to induce ejaculation much more quickly than large males. 
D)  Small males have developed sperm that are more efficient at fertilization than the sperm of larger males.

Question 9

Explain the results of the experiments of Pryke and Andersson (2005)with red-collared widowbirds.Be sure to explain the observations and experiments that were done by these researchers to collect data,and explain why longer tails in males appear to have been under selective pressure,even though the longer tails appear to be detrimental to the overall health of the males.

Accepted Answer

Pryke and Andersson (2005) conducted exp

Question 10

Describe the experiments performed by Steve Tanner and colleagues (2000)with gray tree frogs to demonstrate the sexual selection they observed.Be sure to comment on the sexual selection that occurs to favor longer male calls,and how the length of calls might indicate male body condition.

Accepted Answer

In their 2000 study, Steve Tanner and co

A mating system in which at least some females mate with more than one male is termed ________.

Adam Jones and colleagues (2002)demonstrated that in rough-skinned newts,all females tend to mate with at least one male,and often with several.What is the overall mating success for male rough-skinned newts,and what physical characteristic was selected for in males?

Selection for the ability to successfully compete with members of their own sex to mate with opposite sex is termed ________.

Experiments by Steve Tanner and colleagues (2000)with gray tree frogs demonstrated that female frogs preferentially mated with male frogs exhibiting ________.

The energy and time expended constructing and caring for offspring is known as ________.[two words]

Which of the following statements is true regarding the involvement of sexual selection on male function (pollen donation)leading to sexual dimorphism in flowers?

Provide an example from the text illustrating the following: If one parent invests in his or her offspring more than the other parent,the heavily investing parent is often limited by resources and time.Also,the lightly investing parent is limited by its access to mates.

Small,nonterritorial male marine iguanas typically have their mating interrupted by larger males prior to ejaculation.What alternative mating strategy have these small males developed to compensate for this?

Describe the experiments performed by Steve Tanner and colleagues (2000)with gray tree frogs to demonstrate the sexual selection they observed.Be sure to comment on the sexual selection that occurs to favor longer male calls,and how the length of calls might indicate male body condition.

A Case for Evolutionary Thinking: Understanding HIV

The Pattern of Evolution

Evolution by Natural Selection

Estimating Evolutionary Trees

Variation Among Individuals

Mendelian Genetics in Populations I: Selection and Mutation

Mendelian Genetics in Populations II: Migration, Drift, & Nonrandom Mating

Evolution at Multiple Loci: Linkage and Sex

Evolution at Multiple Loci: Quantitative Genetics

Studying Adaptation: Evolutionary Analysis of Form and Function

The Evolution of Social Behavior

Aging and Other Life-History Characters

Evolution and Human Health

Phylogenomics and the Molecular Basis of Adaptation

Mechanisms of Speciation

The Origins of Life and Precambrian Evolution

Evolution and the Fossil Record

Development and Evolution

Human Evolution

Filters

Exam 11: Sexual Selection

A mating system in which at least some females mate with more than one male is termed ________.

Adam Jones and colleagues (2002)demonstrated that in rough-skinned newts,all females tend to mate with at least one male,and often with several.What is the overall mating success for male rough-skinned newts,and what physical characteristic was selected for in males?

Selection for the ability to successfully compete with members of their own sex to mate with opposite sex is termed ________.

Experiments by Steve Tanner and colleagues (2000)with gray tree frogs demonstrated that female frogs preferentially mated with male frogs exhibiting ________.

The energy and time expended constructing and caring for offspring is known as ________.[two words]

Which of the following statements is true regarding the involvement of sexual selection on male function (pollen donation)leading to sexual dimorphism in flowers?

Provide an example from the text illustrating the following: If one parent invests in his or her offspring more than the other parent,the heavily investing parent is often limited by resources and time.Also,the lightly investing parent is limited by its access to mates.

Small,nonterritorial male marine iguanas typically have their mating interrupted by larger males prior to ejaculation.What alternative mating strategy have these small males developed to compensate for this?

Describe the experiments performed by Steve Tanner and colleagues (2000)with gray tree frogs to demonstrate the sexual selection they observed.Be sure to comment on the sexual selection that occurs to favor longer male calls,and how the length of calls might indicate male body condition.

A Case for Evolutionary Thinking: Understanding HIV

The Pattern of Evolution

Evolution by Natural Selection

Estimating Evolutionary Trees

Variation Among Individuals

Mendelian Genetics in Populations I: Selection and Mutation

Mendelian Genetics in Populations II: Migration, Drift, & Nonrandom Mating

Evolution at Multiple Loci: Linkage and Sex

Evolution at Multiple Loci: Quantitative Genetics

Studying Adaptation: Evolutionary Analysis of Form and Function

The Evolution of Social Behavior

Aging and Other Life-History Characters

Evolution and Human Health

Phylogenomics and the Molecular Basis of Adaptation

Mechanisms of Speciation

The Origins of Life and Precambrian Evolution

Evolution and the Fossil Record

Development and Evolution

Human Evolution

Filters