Sexual selection

Question 1

Sexual selection

Answer 1

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

Question 2

Ansigomy

Answer 2

Differences between male and female sex ells

Question 3

Inter sexual selection

Answer 3

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

Question 4

Intra sexual selection

Answer 4

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

Question 5

Strengths

Answer 5

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

Question 6

Limitaitonas

Answer 6

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