Why does the peacock have such an elaborate tail?
etAP Sexual Selection 3.4.24

Quiz
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Biology
•
9th - 12th Grade
•
Medium
Andrea Jewett
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It increases the male's chances of survival.
It is a non-adaptive sexual trait that has no clear purpose.
It confers an advantage to its bearer in the form of increased reproductive success.
It allows the peacock to fly better.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How did Charles Darwin propose that sexual selection came to be recognized?
By organisms better adapted to their environment having higher rates of survival than those less well adapted.
By the development of traits that are elaborate and apparently non-adaptive.
By the selection of traits that increase an individual's survival at the expense of their reproductive success.
By the selection of traits that increase an individual's reproductive success, even at the expense of their survival.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which sex is under stronger sexual selection?
Males, because they produce fewer but more nutritious gametes.
Females, because they produce large gametes and their reproduction is limited by access to resources.
Males, because they compete among themselves for access to females.
Both sexes equally, because every offspring has one father and one mother.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What can lead to sexual dimorphism?
A smaller variance in reproductive success among males.
A larger variance in reproductive success among females.
A smaller variance in reproductive success among females.
A larger variance in reproductive success among males.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What can lead to reversed sexual dimorphism?
Males providing more parental care than females
Females being larger and more aggressive than males
Females having to compete for access to males
Males having to compete for access to females
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of intersexual selection?
Two males fighting for access to a female
A female choosing a mate based on his elaborate courtship display
A male intimidating other males to prevent them from mating
A female competing with other females for food resources
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a potential outcome of intrasexual selection?
Decreased competition among males
Increased genetic diversity within a species
Dominant males monopolizing a group of females
Females developing more elaborate secondary sexual characters
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