Question

skin: they absorb oxygen through their moist skin for gas exchange. lungs: using throat muscles to push air in (positive - pressure breathing). breathing: frogs breathe in two ways: make them excellent jumpers and swimmers. legs: frogs have strong, muscular legs with webbed toes that. teeth: frogs have small vomerine and maxillary teeth to hold food, but they do not chew. tongue: attached at the front, it flips out to catch prey. mouth: nares: small nostrils that connect to the mouth, allowing frogs to breathe air. 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. where is a frogs tongue attached? at the front of the mouth at the back of the mouth outside the mouth

Explanation:

The text above the options states "Tongue: Attached at the front, it flips out to catch prey." So the attachment - point of a frog's tongue is at the front of the mouth.

Answer:

At the front of the mouth