what is the difference between the following classes?

a) salamander and lizard

b)lizard and snakes

c) Crocodilus and alligator

d) frogs and tods

Salamander is an amphibian while lizard is terrestrial. Lizard has limbs while snake is devoid of them. Crocodile is bigger than alligator and also crocodile has V shaped mouth but alligator has thin mouth. Frogs do not have eggs on their skin while toads can have them. Hope it helped if so... Give a thumbs up.