| A | B |
| operculum | gill cover |
| gill filament | part of gill where gas exchange occurs |
| gill raker | part of gill that removes debris from water |
| anterior dorsal fin | fin used for defense |
| caudal fin | fin on tail used to propel fish through water |
| swimbladder | helps fish move up and down in the water (buoyancy) |
| lateral line | sense organ on exterior of fish |
| pyloric ceaca | fingerlike digestive organs around stomach of fish |
| nictitating membrane | see through eyelid of a frog |
| tympanic membrane | "eardrums" on a frog |
| cloaca | found at end of large intestine of a frog |
| five | number of toes on hindlims of frog |
| four | number of toes on forelimbs of frog |
| webbed | the toes on the hindlimbs of a frog are _______ |
| vomerine teeth | teeth on roof of frog's mouth |
| pectoral fins | fins for balance |
| lungs | adult frogs have this organ for breathing |
| scales | fish are covered in these |
| hindlimbs | limbs for jumping and swimming |
| forelimbs | limbs used for balance |
| nostrils | allow air to enter a frog's mouth |
| three | number of chambers in a frog's heart |