| A | B |
|---|
| tadpoles | fertilized eggs hatch into swimming tailed larvae |
| mucous glands | supply lubricant that keeps the skin moist in air |
| pulmonary circulation | carries deoxygenated blood from the heart to the lungs, then returns oxygenated blood to the heart |
| systemic circulation | carries oxygenated blood from the heart to the muscles and organs of the body and brings deoxygenated blood back to the heart |
| pulmonary respiration | respiration through the lungs |
| cutaneous respiration | respiration through the skin |
| duodenum | the upper portion of the small intestine |
| ileum | the coiled middle portion of the small intestine |
| mesentery | a membrane resembling plastic wrap holds the small intestine in place |
| vent | waste and materials exit the body here |
| nictitating membrane | a transparent moving membrane that covers the eyes |
| tympanic membrane | eardrum |
| columella | a small bone that extends between the tympanic membrane and the inner ear |
| amplexus | when the male frog climbs onto the female from and clings to her tightly |
