Given below is a diagrammatic sketch of a portion of human male reproductive system. Which of the following part contributes to the maximum portion of semen?
$D$
$C$
$B$
$A$
In both chordates and non-chordates intestine develops from
An atretic follicle is
The narrow middle part of the epididymis is called
In rabbit, ex-abdominal reproductive organs are
How many cleavages are completed in $16$ celled stage of egg.