Question

what causes reproduction step wise​

Answer 1

The testis produces sperms, than the sperm enters into penis and penis enters into vagina. The sperms enter into vagina and then into cervix and finally into Fallopian tube where the egg (ova) is present . The fertilization takes place in Fallopian tube and by the process of meiosis the zygote is formed. This is the process of reproduction. Hope it will be helpful.

Answer 2

Ask to your mother

because she is a doctor

she now everything about this