Sexual selection Flashcards

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1
Q

Sexual selection

A
  • Evolutionary explanation of why certain attributes or behaviours are passed down if they produce reproductive success
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2
Q

Ansigomy

A

Differences between male and female sex ells

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3
Q

Inter sexual selection

A

Describes the strategy that each sex uses to attract the other
- Preferred by females who go for quality over quantity
- This is because it is a much bigger investment for women in terms of time energy
- Must choose a genetically fit partner

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4
Q

Intra sexual selection

A

Describes the strategies used within sexes to attract males
- Preferred by males quantity over quality
- Competition between males to get the high quality female

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5
Q

Strengths

A

Evidence that females are more selective
- Clark and Hatfield found that 75% males compared to 0% females would be willing to sleep with a stranger if this stranger co complimented them

Singh
-hip to waist ratio = 0.7
- Demonstrates to mates that the female is fertile and able to carry with birth being easier
- Suggests that some evolutionary pressures are still relevant

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6
Q

Limitaitonas

A

Social and cultural change
- Women no longer dependent on men and the resources they can provide
- Chang et al found that preferences are a combination of evolution and culture

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