Poisonous fangs of a snake are modified:

$Assertion (S)$: In a chameleon,permanent teeth develop after the temporary milk teeth fall out.
$Reason (R)$: Chameleon is a uricotelic animal.

$A$ $Diapsid$ skull is found in which of the following groups?

Which of the following is a non-poisonous viviparous snake?

Which of the following are absent in snakes?

Organisms that possess dry and cornified skin belong to which class?