| A | B |
|---|
| amniote egg | egg that has a porous shell & protective membranes |
| gas exchange | allowed by the shell & membranes |
| internal fertilization | zygote created inside the parent |
| keratin | protein that fills cells causing waterproof scales |
| lungs | used by reptiles from hatching |
| ectothermic | cold blooded; body temperature is changed by environmental temperature |
| endothermic | warm blooded; organism regulates its own temperature |
| Chelonia | order of reptiles that include tortoises & turtles |
| carapace | dorsal (top shell) |
| plastron | ventral (bottom shell) |
| Crocodilia | order of reptiles that include alligators & crocodiles |
| Squamata | order of reptiles that includes snakes & lizards |
| autonomy | the lizard's ability to lose their tails, then regrow them to escape from predators |
| carnivores | meat eaters; all snakes are these |
| tongue | a snake uses this to detect chemicals |
| Jacobson's organ | a sense organ found on the roof of a snake's mouth used to locate prey; snake's tongue transfers chemicals to this |
| hemotoxins | venom that affects the circulatory system |
| neurotoxins | venom that disrupts the nervous system |
| constrictors | snakes that squeeze & suffocate their prey; an anaconda is an example |
| unhinged jaw | enables a snake to swallow large prey whole |
| defend themselves | snakes use mimicry, rattles & hoods for this |
| oviparous | organism that lays eggs that hatch outside the body |
| ovoviviparous | organism that carries eggs inside & eggs hatch internally |
| round pupils | snakes that are active during the daytime have these |
| slit pupils | snakes that are active during the nighttime have these |
| uric acid | the pasty white form of nitrogenous waste that exits the snake |
| land | where reptiles must lay their eggs |
| reptiles | evolved from amphibians |
| snakes | evolved from lizards that lived in burrows |
