Relationships - Evolutionary Explanation

Question 1

what are the two types of selection which may play a role in the evolutionary explanation?

Answer 1

• natural selection
  -sexual selection

Question 2

What is Anisogamy?

Answer 2

Two different types of sex cells

Question 3

What is intersexual selection?

Answer 3

The strategy to do with female preferences or ‘choosiness’. It is where one sex try’s to attract the other. Females prefer quality over quantity and therefor males must possess features attractive to females to attract them.

Question 4

What what does intersexual selection lead to?

Answer 4

Exaggerated features because of the runaway process.

Question 5

Fisher proposed the SSH which is?

Answer 5

The sexy sons hypothesis - sexy traits of a male will be passed down generations as women continue to choose that trait.

Question 6

What is intrasexual selection?

Answer 6

A strategy used by males to compete against each other to be the one selected as they prefer quantity over quality.

Question 7

What does intrasexual selection link to ?

Answer 7

Physical dimorphism difference in body size of men and women. Men larger to fight off competition and women look more youthful so are perceived to have more and better eggs for making babies.