Sexual selection 0.0 / 5 ? PsychologyRelationshipsA2/A-levelAQA Created by: danpurdy1Created on: 13-10-17 19:53 Define sexual selection An evolutionary explanation of partner preference 1 of 20 What are passed on to offspring? Genes that are caused advantageous changes in attributes or behaviours 2 of 20 What is human reproductive behaviour about passing on? Genes that are advantageous due to sexual selection 3 of 20 What does ansiogamy refer to? Differences between male and female sex cells (gametes) 4 of 20 What is the male gamete called? Sperm 5 of 20 Name three features of sperm Small, very mobile and produced continually in large amounts 6 of 20 What is the female gamete called? Egg (ova) 7 of 20 Name three features of an egg (ova) Large, static, produced at intervals and in smaller quantities than sperm 8 of 20 Is there a shortage of males or females? Fertile women but no shortage of fertile males 9 of 20 What are the two types of sexual selection called? Inter and intra 10 of 20 What is the preferred strategy of females? Inter sexual selection 11 of 20 Why is the preferred strategy of females inter sexual selection? Due to it being more about quality rather than quantity 12 of 20 Who researched inter sexual selection? Trivers 13 of 20 What was the findings from Trivers research? They make a greater investment of time, commitment and resources 14 of 20 Why are females more choosy than males? Females would lose more than males 15 of 20 What is the preferred strategy of males? Intra-sexual selection 16 of 20 Why is the preferred strategy of males intra-sexual selection? Due to it being about quantity over quality 17 of 20 What does intra-sexual selection refer to? Competition between males to be able to mate with a fertile female as the male will pass on genes 18 of 20 Define dimorphism The obvious difference between males and females 19 of 20 What consequences does intra-sexual selection have? Behavioural and psychological --> aggressive behaviour and change of shape 20 of 20
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