3.1: The evolutionary explanation for partner preferences Flashcards
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks)
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks).
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool.
Darwin’s theory of sexual selection
Darwin’s theory of sexual selection explains the evolution of characteristics that provide a reproductive advantage, focusing on two key ideas - intersexual selection and intrasexual selection
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks).
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool.
Darwin’s theory of sexual selection explains the evolution of characteristics that provide a reproductive advantage, focusing on two key ideas - intersexual selection and intrasexual selection.
Intersexual selection
Intersexual selection is the evolution of preferences for certain characteristics/qualities within members of the same sex
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks).
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool.
Darwin’s theory of sexual selection explains the evolution of characteristics that provide a reproductive advantage, focusing on two key ideas - intersexual selection and intrasexual selection.
Intersexual selection is the evolution of preferences for certain characteristics/qualities within members of the same sex.
Example
For example, all females evolving to prefer tall and muscular men
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks).
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool.
Darwin’s theory of sexual selection explains the evolution of characteristics that provide a reproductive advantage, focusing on two key ideas - intersexual selection and intrasexual selection.
Intersexual selection is the evolution of preferences for certain characteristics/qualities within members of the same sex.
For example, all females evolving to prefer tall and muscular men.
Intrasexual selection
Intrasexual selection is where members of the same sex (usually males) compete with one another to attract members of the opposite sex (usually females)
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks).
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool.
Darwin’s theory of sexual selection explains the evolution of characteristics that provide a reproductive advantage, focusing on two key ideas - intersexual selection and intrasexual selection.
Intersexual selection is the evolution of preferences for certain characteristics/qualities within members of the same sex.
For example, all females evolving to prefer tall and muscular men.
Intrasexual selection is where members of the same sex (usually males) compete with one another to attract members of the opposite sex (usually females).
Example
For example, males competing against one another to attract a female
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks).
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool.
Darwin’s theory of sexual selection explains the evolution of characteristics that provide a reproductive advantage, focusing on two key ideas - intersexual selection and intrasexual selection.
Intersexual selection is the evolution of preferences for certain characteristics/qualities within members of the same sex.
For example, all females evolving to prefer tall and muscular men.
Intrasexual selection is where members of the same sex (usually males) compete with one another to attract members of the opposite sex (usually females).
For example, males competing against one another to attract a female.
What does this lead to?
This leads to male-female dimorphism
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks).
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool.
Darwin’s theory of sexual selection explains the evolution of characteristics that provide a reproductive advantage, focusing on two key ideas - intersexual selection and intrasexual selection.
Intersexual selection is the evolution of preferences for certain characteristics/qualities within members of the same sex.
For example, all females evolving to prefer tall and muscular men.
Intrasexual selection is where members of the same sex (usually males) compete with one another to attract members of the opposite sex (usually females).
For example, males competing against one another to attract a female.
This leads to male-female dimorphism, which is what?
This leads to male-female dimorphism, which is accentuation of secondary sexual characteristics in those with greater reproductive fitness
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks).
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool.
Darwin’s theory of sexual selection explains the evolution of characteristics that provide a reproductive advantage, focusing on two key ideas - intersexual selection and intrasexual selection.
Intersexual selection is the evolution of preferences for certain characteristics/qualities within members of the same sex.
For example, all females evolving to prefer tall and muscular men.
Intrasexual selection is where members of the same sex (usually males) compete with one another to attract members of the opposite sex (usually females).
For example, males competing against one another to attract a female.
This leads to male-female dimorphism, which is accentuation of secondary sexual characteristics in those with greater reproductive fitness.
Both males and females
Both males and females have evolved with different preferences
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks).
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool.
Darwin’s theory of sexual selection explains the evolution of characteristics that provide a reproductive advantage, focusing on two key ideas - intersexual selection and intrasexual selection.
Intersexual selection is the evolution of preferences for certain characteristics/qualities within members of the same sex.
For example, all females evolving to prefer tall and muscular men.
Intrasexual selection is where members of the same sex (usually males) compete with one another to attract members of the opposite sex (usually females).
For example, males competing against one another to attract a female.
This leads to male-female dimorphism, which is accentuation of secondary sexual characteristics in those with greater reproductive fitness.
Both males and females have evolved with different preferences.
Example
For example, males are attracted to females who ‘display’ signs of fertility and good health and are more likely to demonstrate promiscuous behaviours
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks).
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool.
Darwin’s theory of sexual selection explains the evolution of characteristics that provide a reproductive advantage, focusing on two key ideas - intersexual selection and intrasexual selection.
Intersexual selection is the evolution of preferences for certain characteristics/qualities within members of the same sex.
For example, all females evolving to prefer tall and muscular men.
Intrasexual selection is where members of the same sex (usually males) compete with one another to attract members of the opposite sex (usually females).
For example, males competing against one another to attract a female.
This leads to male-female dimorphism, which is accentuation of secondary sexual characteristics in those with greater reproductive fitness.
Both males and females have evolved with different preferences.
For example, males are attracted to females who ‘display’ signs of fertility and good health and are more likely to demonstrate promiscuous behaviours.
Why is this?
This is because it is advantageous for males to mate as often as possible to enhance their reproductive success
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks).
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool.
Darwin’s theory of sexual selection explains the evolution of characteristics that provide a reproductive advantage, focusing on two key ideas - intersexual selection and intrasexual selection.
Intersexual selection is the evolution of preferences for certain characteristics/qualities within members of the same sex.
For example, all females evolving to prefer tall and muscular men.
Intrasexual selection is where members of the same sex (usually males) compete with one another to attract members of the opposite sex (usually females).
For example, males competing against one another to attract a female.
This leads to male-female dimorphism, which is accentuation of secondary sexual characteristics in those with greater reproductive fitness.
Both males and females have evolved with different preferences.
For example, males are attracted to females who ‘display’ signs of fertility and good health and are more likely to demonstrate promiscuous behaviours.
This is because it is advantageous for males to mate as often as possible to enhance their reproductive success.
Females, however,
Females, however, are attracted to males who can physically protect them and their offspring and have the ability to provide/invest resources in their potential offspring
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks).
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool.
Darwin’s theory of sexual selection explains the evolution of characteristics that provide a reproductive advantage, focusing on two key ideas - intersexual selection and intrasexual selection.
Intersexual selection is the evolution of preferences for certain characteristics/qualities within members of the same sex.
For example, all females evolving to prefer tall and muscular men.
Intrasexual selection is where members of the same sex (usually males) compete with one another to attract members of the opposite sex (usually females).
For example, males competing against one another to attract a female.
This leads to male-female dimorphism, which is accentuation of secondary sexual characteristics in those with greater reproductive fitness.
Both males and females have evolved with different preferences.
For example, males are attracted to females who ‘display’ signs of fertility and good health and are more likely to demonstrate promiscuous behaviours.
This is because it is advantageous for males to mate as often as possible to enhance their reproductive success.
Females, however, are attracted to males who can physically protect them and their offspring and have the ability to provide/invest resources in their potential offspring.
Therefore,
Therefore, females are more likely to demonstrate selective or choosy behaviours in an attempt to find the most suitable male for them and their potential offspring
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks).
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool.
Darwin’s theory of sexual selection explains the evolution of characteristics that provide a reproductive advantage, focusing on two key ideas - intersexual selection and intrasexual selection.
Intersexual selection is the evolution of preferences for certain characteristics/qualities within members of the same sex.
For example, all females evolving to prefer tall and muscular men.
Intrasexual selection is where members of the same sex (usually males) compete with one another to attract members of the opposite sex (usually females).
For example, males competing against one another to attract a female.
This leads to male-female dimorphism, which is accentuation of secondary sexual characteristics in those with greater reproductive fitness.
Both males and females have evolved with different preferences.
For example, males are attracted to females who ‘display’ signs of fertility and good health and are more likely to demonstrate promiscuous behaviours.
This is because it is advantageous for males to mate as often as possible to enhance their reproductive success.
Females, however, are attracted to males who can physically protect them and their offspring and have the ability to provide/invest resources in their potential offspring.
Therefore, females are more likely to demonstrate selective or choosy behaviours in an attempt to find the most suitable male for them and their potential offspring.
First AO3 PEEL paragraph
The first AO3 PEEL paragraph is that there is research support for intersexual selection
Discuss evolutionary explanations for partner preferences (16 marks)/Discuss the relationship between sexual selection and human reproductive behaviour (16 marks).
Natural selection theory is that genes that confer reproductive advantage will increase in the gene pool.
Darwin’s theory of sexual selection explains the evolution of characteristics that provide a reproductive advantage, focusing on two key ideas - intersexual selection and intrasexual selection.
Intersexual selection is the evolution of preferences for certain characteristics/qualities within members of the same sex.
For example, all females evolving to prefer tall and muscular men.
Intrasexual selection is where members of the same sex (usually males) compete with one another to attract members of the opposite sex (usually females).
For example, males competing against one another to attract a female.
This leads to male-female dimorphism, which is accentuation of secondary sexual characteristics in those with greater reproductive fitness.
Both males and females have evolved with different preferences.
For example, males are attracted to females who ‘display’ signs of fertility and good health and are more likely to demonstrate promiscuous behaviours.
This is because it is advantageous for males to mate as often as possible to enhance their reproductive success.
Females, however, are attracted to males who can physically protect them and their offspring and have the ability to provide/invest resources in their potential offspring.
Therefore, females are more likely to demonstrate selective or choosy behaviours in an attempt to find the most suitable male for them and their potential offspring.
The first AO3 PEEL paragraph is that there is research support for intersexual selection.
Example
For example, Clarke and Hatfield conducted research where confederates were instructed to approach both male and female students on a university campus and ask one of three questions.
The most pertinent question in the research was ‘I find you very attractive, would you go to bed with me?’
Clarke and Hatfield found that 75% of males were willing to have sex with a stranger, whereas no females were