Amniotic fluid protects the foetus from
Degeneration
Jerks
Encystment
None
External stimulus which induces cleavage in an unfertilized ovum is called
Which of the following provides nutrition to sperm?
Identify $A, B$ and $C$ in the given human sperm diagram
The hormone that prepares and maintains the uterus during pregnancy is secreted by
Onset of menstruation is due to