Prostate gland surrounds the $...A....$ It produces milky, slightly alkaline solution which forms $...B..$ volume of the semen. The secretion contains $...C...$ acid and enzymes (acid phosphates, amylase pepsinogen and prostaglandins). $A$, $B$ and $C$ in the above statement is
$A-prostate gland\;, B-35\;\%,\; C-carboxylic$
$A-penis\;, B-40\;\%,\; C-carboxylic$
$A-urethra \;B-25\; \%, \;C-citric$
$A-ureter\;, B-50\;\%, \;C-citric$
Brain originates from which germ layer
Which of the following is similar in function to Cowper's gland
Amniotic fluid protects the foetus from
All extra embryonic membranes
The human sperms were first seen and discovered by