Question

skin: frogs have smooth, slippery skin. their back (dorsal side) is darker for camouflage, while their belly (ventral side) is lighter to blend in with the light above - this is called countershading. head features: eyes: frogs have three eyelids per eye: an upper, a lower, and a transparent nictitating membrane that protects the eye underwater and keeps it moist. tympanic membrane: these eardrums, located behind the eyes, detect vibrations. nares: small nostrils that connect to the mouth, allowing frogs to breathe air. mouth: tongue: attached at the front, it flips out to catch prey. teeth: frogs have small vomerine and maxillary teeth to hold food, but they do not chew. legs: frogs have strong, muscular legs with webbed toes that make them excellent jumpers and swimmers. breathing: frogs breathe in two ways: what are the tympanic membranes on a frog? choose the correct answer. its nostrils its eyelids its eardrums

Explanation:

The text mentions that the tympanic membranes in frogs are eardrums located behind the eyes, which detect vibrations.

Answer:

Its eardrums