how reproduction takes place in human being ?
how sex is determined ?
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Human reproduction naturally takes place as internal fertilization by sexual intercourse. ... The sperm and the ovum are known as gametes
In humans, biological sex is determined by five factors present at birth: the presence or absence of a Y chromosome, the type of gonads, the sex hormones, the internal genitalia (such as the uterus in females), and the external genitalia.
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