Question

how the sperm transfer is possible in human life

Answer 1

Sperms formed in testis move out of the male body as semen through urethra. At the time of mating, the male sheds its sperms inside the vagina of female and these travel to uterus, then fallopian tube of female body moving through vagina and cervix. In the fallopian tube the sperm fuses with egg called fertilization that results in the formation of zygote. Further development of zygote takes place in the uterus of female.

Answer 2

Sperms formed in testis move out of the male body as semen through urethra. At the time of mating, the male sheds its sperms inside the vagina of female and these travel to uterus, then fallopian tube of female body moving through vagina and cervix. In the fallopian tube the sperm fuses with egg called fertilization that results in the formation of zygote. Further development of zygote takes place in the uterus of female.