This document lists body parts and characteristics of different types of reptiles including snakes, lizards, turtles, crocodiles, and alligators. Some key characteristics mentioned are: they are vertebrates that lay eggs or give live birth, breathe through lungs, have dry skin with scales or plates, a tail, and are cold-blooded living both on land and in water. The document also notes some reptiles give birth to live young that break out of their eggs inside the mother's body.