The mammalian brain differs from an amphibian brain in possessing:

What is the limbic system?

The link between paracoel and diocoel is through

Match the following columns regarding the cranial meninges:

Column-$I$	Column-$II$
$P$. Pia mater	$I$. Thin and vascular
$Q$. Arachnoid mater	$II$. Thin,transparent,avascular
$R$. Dura mater	$III$. Thick,tough

Which of the following is correct for the pairs of cervical nerves and number of cervical vertebrae respectively?

Given below are two statements $:$
Statement-$I$ : The cerebellar hemispheres are connected by a tract of nerve fibres known as the corpus callosum.
Statement-$II$ : The brain stem consists of the midbrain and all parts of the hindbrain.
In the light of the above statements,choose the most appropriate answer from the options given below.