$A$ stumpy laterally compressed tail is characteristic of

In reptiles,which of the following represents the development of the external ear?

Zoological name of common Indian krait is

Lateral line sense organs are absent in

Which of the following animals has a three-chambered heart?

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