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Define sexual selection in the context of human reproductive behaviour.

Sexual selection is an evolutionary explanation for partner preference, suggesting that attributes beneficial to survival and which increase reproductive success are passed on through genes. Therefore, human reproductive behaviour, including mate choice preferences, are affected by evolution.

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"Define sexual selection in the context of human reproductive behaviour."	"Sexual selection is an evolutionary explanation for partner preference, suggesting that attributes beneficial to survival and which increase reproductive success are passed on through genes. Therefore, human reproductive behaviour, including mate choice preferences, are affected by evolution."
"Explain the concept of anisogamy."	"Anisogamy refers to the difference between male and female sex cells. Females have a finite supply of eggs, only one of which is released each month, requiring much more effort to produce than males who produce large numbers of sperm continuously. This leads to a difference in mating strategies between males and females."
"Describe inter-sexual selection."	"Inter-sexual selection refers to strategies one sex uses to select a partner from the opposite sex. This is typically the strategy females use, as they invest more in producing an egg and raising offspring. Therefore, females are more selective in choosing a mate. Males compete with each other to be 'selected' by a female."
"What is the 'runaway process' in the context of inter-sexual selection?"	"The 'runaway process' refers to the persistence of certain attractive characteristics. If a male with a certain characteristic is chosen by a female, their son will inherit the trait and pass it down to his son, and so on. If they have a daughter, the preference for the characteristic will be passed down to the daughter."
"Define intra-sexual selection."	"Intra-sexual selection refers to strategies one sex uses to be the one that is 'selected' by the other sex. This is the preferred strategy of males- the winner of the 'competition' between males gets to mate with a female. The characteristics that made them the winner get passed down through generations, leading to 'dimorphism' - the obvious physical differences between males and females."

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