Final answer:
Echolocation is the term for hearing such an important adaptation in vertebrates. It is a biological ability that allows certain animals to emit sounds and interpret the echoes to determine the location, distance, and characteristics of objects in their environment.
Step-by-step explanation:
The term for hearing such an important adaptation in vertebrates is echolocation. Echolocation is a biological ability that allows certain animals to emit sounds and interpret the echoes to determine the location, distance, and characteristics of objects in their environment. Bats and dolphins are well-known examples of animals that use echolocation for navigation, hunting, and communication.