20 h 30 min, 27 avr. 2002 ans - Weeks 1-3
Description:
Millions of sperm cells are released into the fallopian tube of the female during ovulation. These cells then begin to try to penetrate the egg to create a baby. However, one only sperm cell will bond with the egg to form a zygote.Ajouté au bande de temps:
Date:
20 h 30 min, 27 avr. 2002 ans
Maintenaint
~ Il y a 23 ans