Which acid is found in human semen?

The organs which produce gametes are called $...A...$ and those which neither produce gametes nor hormones are called $...B...$. Here $A$ and $B$ represent:

In adults,the length and width of the testis are about . . . . . . respectively.

Which of the following structures is found within the inguinal canal?

Failure of the testis to descend into the scrotum is called:

Given below are two statements with respect to the prostate gland in males.
$Statement-I$: These are large paired glands, located underneath the urinary bladder.
$Statement-II$: Milky white, slightly acidic prostatic fluid is secreted into the urethra.
Choose the most appropriate answer from the options given below.