sexual selection

Question 1

evolutionary explanations for partner preferences

Answer 1

sexual selection and human reproductive behavior

Question 2

outline the relationship bw sexual selection and human reproductive behavior- 6m

Answer 2

.

Question 3

human reproductive behaviour

Answer 3

beh that rel to opportunities to reprod and thereby increase the survival chances of our genes

Question 4

discus rel bw ss and hrb

Answer 4

.

Question 5

intra-sexual selection

Answer 5

w/in sexes
males compete for access to the female
characteristics in those with greater reproductive fitness
winner reproduces an passes on chara which contributed to his victory-strength
leads to male-female dimorphism- accentuation of secondary sexual

Question 6

inter-sexual selection

Answer 6

between sexes
females choose from available prospective
mates

Question 7

key study- Buss

Answer 7

survey, 10k adults, 33 countries
males-youth, looks-signs of fertillity
females-ambition, financial prospects
diff stategies due to anisogamy
irrespective of culture

Question 8

Singh

Answer 8

supp from wasit to hip ratio research
men pref 0.7
honest trait, x carrying another man’s child
sign of fertility

Question 9

Clark and hatfield

Answer 9

supp for inter-sexual selection
uni campus 
'i find you attractive will you sleep with me tonight'
0 females yes
75% males yes- immediately
females more choosy

Question 10

Bereczkei

Answer 10

social norms change, due to changes in soc/cultural factors rather than evol
bereczkei-consequence- women’s pref no longer resource orientated
combination of evol and cultural infl, but this theory ignores

Question 11

waynforth and dunbar

Answer 11

lonely hearts adverts in newspaper
women- physically attractive-youth
men- good resources, successful and ml to seek for phys att and youth
displays diff strategies of males and females

Question 12

sexual selection

Answer 12

attributes or behavior that increase reproductive success are passed on and may become exaggerated over succeeding generations of offspring

Question 13

anisogamy

Answer 13

diff bw male and female gametes
egg- more e req to sustain, satic rel large
sprem-

Question 14

fisher

Answer 14

sexy sons hyp

Question 15

trivers

Answer 15

females invest more time, commitment and resources b4, during and after birth
so consequence of chosing wrong partner worse for females