City and Guilds Animal Management Level 3 Biological Systems Practice Test

The ear is the sensory organ responsible for detecting sound because it houses structures specifically designed for processing auditory information. Sound waves enter the ear and cause vibrations in the eardrum, which are then transmitted through the ossicles (tiny bones in the middle ear) to the cochlea in the inner ear. The cochlea contains hair cells that convert these vibrations into electrical signals, which are sent to the brain via the auditory nerve, allowing us to perceive sound.

The other options focus on other senses: the nose is involved in the sense of smell, the skin is responsible for the sense of touch, and the eye is essential for vision. Each of these sensory organs has specialized functions, making them integral to their respective sensory systems, but only the ear is designed to detect sound.