Podcast
Questions and Answers
"Sneaker males" provide an example of ___________ selection that results in _________________ traditional patterns of sexual dimorphism.
"Sneaker males" provide an example of ___________ selection that results in _________________ traditional patterns of sexual dimorphism.
- intersexual; an exception to
- intrasexual; an exception to (correct)
- natural; an example of
- intrasexual; an example of
The large antlers on male elk can most likely be attributed to which type of selection?
The large antlers on male elk can most likely be attributed to which type of selection?
- group selection
- intersexual selection
- anisogamy
- intrasexual selection (correct)
Male peacocks have impressive, colorful tails. Which of the following is true of these impressive tails?
Male peacocks have impressive, colorful tails. Which of the following is true of these impressive tails?
- Two of these are correct (correct)
- They may not be favored by natural selection
- They are most likely the result of the founder effect
- They may indicate males' health status to females
In one species of fish, males (rather than females) are responsible for parental care of eggs and offspring. Females aim to mate as much as possible, and males invest more time and energy in each offspring. Which of the following statements about sexual selection in these species is most likely?
In one species of fish, males (rather than females) are responsible for parental care of eggs and offspring. Females aim to mate as much as possible, and males invest more time and energy in each offspring. Which of the following statements about sexual selection in these species is most likely?
Which of the following statements about sexual selection is false?
Which of the following statements about sexual selection is false?
Which of the following is a sexual dimorphism?
Which of the following is a sexual dimorphism?
Intersexual selection usually operates on _____________ because they have a relatively ______________ degree of variability in mating success.
Intersexual selection usually operates on _____________ because they have a relatively ______________ degree of variability in mating success.
One of the reasons for female choice is that, as opposed to males, females usually produce a _____________ number of ___________ gametes.
One of the reasons for female choice is that, as opposed to males, females usually produce a _____________ number of ___________ gametes.
The phalarope is the name of a group of shorebirds that displays polyandry, a mating system in which females have multiple male mates during the breeding season. As a result, this is a rare instance in which the females show elaborate courtship display behaviors in order to attract males. These courtship behaviors are an example of _________________.
The phalarope is the name of a group of shorebirds that displays polyandry, a mating system in which females have multiple male mates during the breeding season. As a result, this is a rare instance in which the females show elaborate courtship display behaviors in order to attract males. These courtship behaviors are an example of _________________.
Male elephant seals are much larger than females of the same species, which enables them to compete with other males for mates. This externally manifested difference between males and females of the same species is known as:
Male elephant seals are much larger than females of the same species, which enables them to compete with other males for mates. This externally manifested difference between males and females of the same species is known as:
