In human female, the blastocyst
Forms placenta even before implantation
Gets implanted in the uterus $3\; days$ after ovulation
Gets implanted in the endometrium by trophoblast cells
The trophoblast cells get differentiated as the embryo
Prepuberal period refers to a stage of
After ovulation Graafian follicle transforms into
The shock absorber fluid of the developing embryo is known as
Ejaculation is the $...A...$ response. Erection is a $...B...$ response. Here, $A$ and $B$ refers to
The stem cells which have potency to give rise to all tissues and organs are formed from