| A | B |
|---|
| Dinosaurs | "Terrible lizards" The roamed the Earth as far back as 360 million years ago. |
| Asteriod Impact Hypotheis | A hypothesis where an asteriod hit Earth and created so much dust that it caused severed climatic changes resulting in the death of the dinosaurs. |
| Amniotic eggs | Eggs that are encase the embryo in a secure, self-contained aquatic environment. |
| Amnion | The thin membrane enclosing the fluid in which the embryo floats. |
| Yolk sac | Encloses the yolk. |
| Yolk | A fat-rich food supply for the developing embryo. |
| Allantois | Stores the nitrogenous wastes that are produced by the embryo. |
| Chorion | Surrounds all other membranes and protects the embryo. |
| Albumen | Where protein adn water are stored for the embryo. |
| Keratin | A protein that is found in reptiles to prevent water loss. |
| Septum | A wall of tissue that partially divides the ventricle in reptilian hearts. |
| Alveoli | Numerous small sacs found in teh lungs that greatly increase the internal surface area of the lung allowing for more gas exchange. |
| Jacobson's organ | A specialized sense organ located on teh roof of the mouth of reptiles. It is sensitive to odors. |
| Thermoregulation | Control of the body temperature. |
| Ectotherm | An animal that warms its body by absorbing heat from its surroundings. (Cold-blooded) |
| Endotherms | Animals that generate their own heat. (Warm-blooded) |
| Oviparity | The female's reproductive tract encloses each egg in a tough protective shell. |
| Ovoviviparity | The female keeps the eggs inside her body. |
| Order Chelonia | Turtles and Tortoises |
| Carapace | The top or dorsal side of the shell. |
| Plastron | The lower or ventral portion of the shell. |
| Order Crocodilia | Crocodiles, alligators, caimans, and the gavials. |
| Order Squamata | Lizards and snakes. |
| Automony | The ability of a lizard to detach its tail when threatened. |
| Constrictors | Snakes that wrap their bodies around prey. |
| Elapid snakes | Snakes that inject poison through two small fixed fangs in the front of the mouth. |
| Vipers | Inject poison through large mobile fangs in the front of the mouth. |
