Lecture 20

Question 1

Females need to conserve energy for what?

Answer 1

egg production

Question 2

Females are only ________ for a short period of time.

Answer 2

receptive

Question 3

What are some pressures that females face when trying to select a mate?

Answer 3

Health

Access to resources

Question 4

What is intersexual selection?

Answer 4

Individuals of one sex select individuals of the opposite sex for reproduction

Question 5

Intrasexual selection?

Answer 5

• Individuals of the same sex compete for access to preferred
mates of the opposite sex

Question 6

What is Bateman’s principle?

Answer 6

females should
exhibit higher rates of selection than males
due to the costs associated with
reproduction; this increased selection
pressure should result in high variance in
male reproductive success

Question 7

Eggs are expensive to produce and cause females to have limited what?

Answer 7

reproductive success as compared to males

Question 8

Define Secondary sex characteristics?

Answer 8

traits that are not associated directly with the act of mating but
are used to judge genetic fitness and influence mate selection
• Antlers
• Plumage
• Coloring (especially in birds)