In rabbit, head of the epididymis present at the head of the testis is called
Vas deferens
Cauda epididymis
Gubernaculum
Caput epididymis
Given below is an incomplete flow chart showing influence of hormones of gametogenesis in human females. $A, B, C$ and $D$ in the chart refers to
Survival time of sperms introduced into the vagina may be
Placenta is present in
In human, beings, after .............. month of pregnancy, the embryo's heart is formed.
In the beginning of menstruation what will happen?