Question

define the process step by step reproduction in humans as per text

Answer 1

Human reproduction is any form of sexual reproduction resulting in human fertilization, typically involving sexual intercourse between a man and a woman. During sexual intercourse, the interaction between the male and female reproductive systems results in fertilization of the woman's ovum by the man's sperm. These are specialized reproductive cells called gametes, created in a process called meiosis. While normal cells contains 46 chromosomes, 23 pairs, gamete cells only contain 23 chromosomes, and it is when these two cells merge into one zygote cell that genetic recombination occurs and the new zygote contains 23 chromosomes from each parent, giving them 23 pairs. After a gestation period, typically for nine months, is followed by childbirth. The fertilization of the ovum may be achieved by artificial insemination methods, which do not involve sexual intercourse

Answer 2

Answer:

Sexual Reproduction in humans

In sexual reproduction in animals, there are 2 parents: male and female.

The two parents have sex organs which produce sex cells or gametes.

The male parent has sex organ called testes which produce male sex cell called sperm.

The female parent has sex organ called ovaries which produce female sex cell called eggs.

The sexual reproduction take place in following steps:

1)The male parent produces male gametes called sperms.

2)The female parent produce female gamete called eggs.

3)The sperm enters into the egg.The nucleus of sperm fuses with the nucleus of egg cell to form a new cell called zygote.

4)The zygote divides repeatedly to form a hollow ball of hundreds of cells which is called embryo.

5)Embryo grows and becomes a foetus .

6)Foetus grows and develops to form a new baby animal.

Explanation:

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