Natural Selection vs Sexual Selection Flashcards Preview

Psychology: Relationships (AQA) > Natural Selection vs Sexual Selection > Flashcards

Flashcards in Natural Selection vs Sexual Selection Deck (10)
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1
Q

As well as traits that give someone an sexual advantage, there are traits that can give someone a…

A

survival advantage

2
Q

What is a survival advantage?

A

traits that make it more likely an individual will survive long enough to reproduce

3
Q

sometimes the traits that are attractive to a mate makes an individual…

A

less likely to survive

4
Q

sexual selection can cause…

A

conflict

5
Q

whats an example of sexual selection getting in the way of natural selection?

A

Peacocks - the females have bright coloured tails to attract males but the bright colours attract predators

6
Q

who came up with the Handicap Principle?

A

Zahavi (1975)

7
Q

what did Zahavi argue?

A

displaying a noticeable handicap to survive actually indicates survival strength

8
Q

according to the handicap principle, if someone has survived with unhelpful characteristics, this means…

A

they have superior genes

9
Q

one example of the handicap principle in humans

A

males have a strong, square jaw due to high levels of testosterone

10
Q

what does testosterone do?

A

it lowers the immune system