Which of the following is included in the forebrain of a frog?

Choose the correct sentences for a female frog.
$1$. Vocal sacs are absent in female frogs.
$2$. $A$ mature female can lay $2500$ to $3000$ ova at a time.
$3$. In female frogs,fertilized eggs are encased in oothecae and it is a dark reddish to blackish brown.

The integument of the frog is always kept moist because

The opening of the rectum in a frog is called:

In the buccal cavity of a frog,the internal nares are:

The second cranial nerve of the frog is: