| A | B |
| tadpole | larva stage of a frog with a tail and gills |
| ectotherm | cold blooded |
| frog | have lungs and webbed feet |
| skin of a frog | exchange oxygen and carbon dioxide |
| tympanic membrane | used for hearing |
| esophagus | tube that food travels down |
| small intestines | absorbs food into blood stream |
| stomach | connected to the small intestines |
| liver | produces and stores bile |
| bile | digestive juice that breaks down fat |
| amphibian | means double life (water and land) |