Question

what is know as reproduction ? how does sperms enter female reproductive organ?

Answer 1

reproduction is simple that the fusion of male nuclei with female nuclei to form zygote..

sperm enter in female reproductive organ through uterus it can attached to the uterine wall...then after zona pelicuda membrane than tail part left out and head part enter in female reproductive organ... because head part have energy to swim in acrosome upper head part ..then fertilization in fallopian tube...