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Why sex? ,[object Object]
Diversity ,[object Object],[object Object]
Diversity ,[object Object]
Plant sex ,[object Object]
Reproduction in flowering plants ,[object Object],[object Object],[object Object]
Hermaphrodites ,[object Object]
Fertilization is not always internal! ,[object Object]
Reproduction in humans ,[object Object],[object Object],[object Object]
Reproduction in humans
The male reproductive organs
The female reproductive organs
Puberty Males Females ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Menstruation ,[object Object]
Now for the  main attraction
Sexual intercourse ,[object Object],[object Object]
Why is sex pleasurable? ,[object Object],[object Object],[object Object]
Fertilisation ,[object Object]
Fertilisation ,[object Object]
Development ,[object Object]

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18 Sexual Reproduction