Question

1. Under which model of sexual selection is sexual conflict responsible for the evolution of male ornaments or display traits?

Select one:

a. Run-away sexual selection

b. Chase-away sexual selection

c. Both run-away and chase-away sexual selection

2. Under both run-away or chase-away sexual selection models, a mail display trait will evolve to become increasingly exaggerated / extreme, until...

Select one:

a. It is halted from further exaggeration by natural selection

b. female preference changes in the opposite direction

c. female fitness goes down

d. the species goes extinct

3. In both run-away and chase-away sexual selection, exaggerated male ornaments and display traits are:

Select one:

a. adaptations to the environment

b. not necessarily beneficial under natural selection

c. in conflict with female fitness

d. honest indicators of male genetic quality

4. Under the run-away model of sexual selection, female preference for male display traits is:

Select one:

a. genetically linked to the male display trait

b. detrimental to female fitness

c. acted upon by natural selection

d. an adaptation

5. True or False: The chase-away sexual selection model predicts the evolution of female resistance to male ornaments and display traits.

Select one:

a.True

b. False

Answer 1

Answer:

1. Under which model of sexual selection is sexual conflict responsible for the evolution of male ornaments or display traits?

Select one:

a. Run-away sexual selection

b. Chase-away sexual selection

c. Both run-away and chase-away sexual selection - Correct Option (Both runaway and chase-away forms of sexual selection result in evolution of extreme ornaments and displays in males)

2. Under both run-away or chase-away sexual selection models, a mail display trait will evolve to become increasingly exaggerated / extreme, until...

Select one:

a. It is halted from further exaggeration by natural selection - Correct Option (when natural selection based disadvantages of the trait outweighs the benefits then the display trait evolution is halted)

b. female preference changes in the opposite direction

c. female fitness goes down

d. the species goes extinct

3. In both run-away and chase-away sexual selection, exaggerated male ornaments and display traits are:

Select one:

a. adaptations to the environment

b. not necessarily beneficial under natural selection - Correct Option

c. in conflict with female fitness

d. honest indicators of male genetic quality

4. Under the run-away model of sexual selection, female preference for male display traits is:

Select one:

a. genetically linked to the male display trait

b. detrimental to female fitness

c. acted upon by natural selection

d. an adaptation

5. True or False: The chase-away sexual selection model predicts the evolution of female resistance to male ornaments and display traits.

Select one:

a.True - Correct Option (chase-away sexual selection model features the evolution of female resistance as compared to evolution of female preference for the male display trait)

b. False