The heart of a crocodile is

Jacobson's organ is concerned with

$A$ lizard-like member of $Reptilia$ is sitting on a tree with its tail coiled around a twig. This animal could be

All of the following are characteristics of reptiles,except:

$A$ true terrestrial animal is

Which of the following statements are correct?
$I.$ Venom of cobra is neurotoxic.
$II.$ Venom of sea snake is neurotoxic.
$III.$ Venom of viper is haemotoxic.