P3 Section B (Relationships) Flashcards
(94 cards)
What is sexual selection
Sexual selection is the evolutionary process of selecting a mating partner who displays advantageous behaviour in human reproduction
What behaviour can be advantageous in human reproduction but disadvantage otherwise
Aggression can be advantageous in human reproduction but disadvantageous otherwise as it shows protection
What is anisogamy
Anisogamy is the form of sexual reproduction between the two opposite gametes - sperm and egg cells.
What is a consequence of anisogamy
A consequence of anisogamy is that there is a plentiful fertile male population, but fertile females are rare.
What are anisogamy’s two mating strategies
Anisogamy’s two mating strategies are inter- sexual selection and intra-sexual selection
What is inter-sexual selection
Inter-sexual selection is the strategy where mainly females have preferences for members of the opposite sex who have desirable qualities.
What is intra-sexual selection
Intra-sexual selection is the strategy whereby mainly males compete with each other to mate with a female.
What do females desire in a male
Females desire in a male: height, strength and physical attractiveness
What do males desire in a female
Males desire in a female: signs of fertility such as small waist-hip ratio and smallness
Summary of inter-sexual selection
Summary of inter-sexual selection: quality over quantity
Summary of intra-sexual selection
Summary of intra-sexual selection: quantity over quality
What is a psychological consequence of inter-sexual selection
A psychological consequence of inter-sexual selection is that females need to be very choosy as their offspring must have features of the mate
What is a psychological consequence of intra-sexual selection
A psychological consequence of intra-sexual selection is that males have a minimal post-coital responsibility as they are biologically driven by mating with as many fertile females
What is a behavioural consequence of intra-sexual selection
A behavioural consequence of intra-sexual selection is that males prefer youth such as youthful facial features and also fertility such as certain waist-hip ratio.
What is Fisher’s Sexy Sons Hypothesis
Fisher’s Sexy Sons Hypothesis is the idea that females prefer males who have desirable traits like height as this will be inherited by their son increasing the likelihood that they will then mate.
What was Buss’ method to support preferences relating to anisogamy
Buss’ method to support preferences relating to anisogamy was a survey of over 10,000 adults across 33 countries asking questions relating to their partner preference
What did Buss find to support preferences relating to anisogamy
Buss found to support preferences relating to anisogamy that females placed value on resource-related characteristics like finances and men placed value on reproductive capacity like good looks and youthfulness showing the sex differences in mating strategies
What was Clark and Hatfield’s method to support inter-sexual selection
Clark and Hatfield’s method to support inter-sexual selection was asking male and female students “would you go to bed with me?”
How do Clark and Hatfield support inter-sexual selection
Clark and Hatfield support inter-sexual selection by female/male confederates asking students “would you sleep with me” and found that 0% of females said said yes and 75% of males said yes - showing female choosiness when selecting a partner
How does Bereckzei say sexual selection has changed
Bereckzei says social changes have made women’s male preferences far less resource orientated as more women are financially independent
How does Singh support males preference of waist hip ratio
Singh supports males preference of waist hip ratio by finding that average liking is 0.7 to be deemed as fertile and not pregnant
What is a negative of Singhs WHR research
A negative of Singhs WHR research is that it was only tested on Asian men so can’t be applied universally
What did Anderson found about male preferences across countries
Anderson found that males in countries where food supply is scarce prefer heavier women but in countries where food supply is stable, men prefer slimmer women
What is self-disclosure
Self-disclosure is an act of revealing personal details like intimate thoughts, feelings and experiences.