Evolutionary explanations

Question 1

Anisogamy

Answer 1

differences between male and female gametes

Question 2

Inter-sexual selection

Answer 2

• competition between sexes
• female
• resources

Question 3

Sexy Sons hypothesis

Answer 3

• Fisher
• female mates with a male which characteristics son will inherit this trait making them more likely to be selected for mating

Question 4

Intra-sexual selection

Answer 4

• with sex
• male strategy
• quantity over quality
• aggressive behaviour

Question 5

Dimorphism

Answer 5

• males and females look different due to intra-sexual selection
  e.g. large males favoured due to competition but women don’t have to compete so largeness isn’t favoured
• neonatal

Question 6

Inter-sexual support

Answer 6

Clark and Hatfield
- male and female psychology student across campus
- “I have been noticing you around campus. I find you to be very attractive. Would you go to bed with me tonight?”
- 0 females
- 75% males

Question 7

Simplistic

Answer 7

Buss and Schmitt
- Sexual strategies theory: male and females have similar strategy when looking for long-term partner e.g. both choosy look for loyalty
- more complex view of partner preference, takes context of reproductive behaviour

Question 8

Intra-sexual support

Answer 8

Buss
- Survey 10,000 adults 33 countries
- partner preference Qs
- females want resource
- male want physical neonatal

Question 9

Sociocultural influence

Answer 9

• changes over last century
• bereczkei: social change in women e.g. role in workplace make preference less resource oriented
• theory fails to account for cultural influence

Question 10

Homosexuality

Answer 10

• can’t explain gay relationships as no reproduction

Lawson: personal ads placed by gay and straight people differences between gay men and women sames as in straight