Relationships

Question 1

What is intra-sexual selection?

Answer 1

• takes place when males compete -often aggressively- and the winner is rewarded the female.
• The female is passive in this process and doesn’t get to choose her mate.

Question 2

What is inter-sexual selection?

Answer 2

• takes place when males compete for the attention of a female.
• The female plays an active role, choosing her mate.

Question 3

Why do men and women look for partners with a symmetrical face?

Answer 3

• it suggests good genes and means they can pass the good genes down to their offspring.

Question 4

What are the two types of sexual selection?

Answer 4

• intra-sexual selection
• inter-sexual selection

Question 5

What is natural selection?

Answer 5

• where characteristics that make an individual more likely to reproduce and pass on their genes, becoming more prevalent in a population

Question 6

As well as reproductive advantage what can natural selection also be used for?

Answer 6

• it also happens with traits that give a survival advantage (traits that make it more likely an individual will survive long enough to reproduce.

Question 7

Who suggested the Handicap Principle?

Answer 7

• Zahavi (1975)