Final answer:
The word 'audible' refers to anything that is perceptible to the ear, meaning it can be heard. Human hearing typically ranges from 20 Hz to 20,000 Hz, with variations among other species, such as dogs, bats, and dolphins.
Step-by-step explanation:
The term perceptible to ear refers to something that can be heard, in other words, something that is audible. The human ear can detect a wide range of frequencies, usually between 20 Hz and 20,000 Hz. Sounds below this range are known as infrasound and are not perceivable by the human ear, although they might sometimes be felt as vibrations. Conversely, sounds above this range are referred to as ultrasound and are also not detected by the human ear, but have applications such as in medical imaging.
Other animals have different ranges of hearing. For example, dogs can hear up to 45,000 Hz, while bats and dolphins can hear sounds up to 110,000 Hz. These capacities allow animals like dogs to respond to high-frequency dog whistles that are beyond human auditory perception. Similarly, elephants can detect infrasound frequencies below 20 Hz. The perception of sound frequency is known as pitch, and the perception of sound intensity is known as loudness, both of which are integral to our ability to process and enjoy sounds like music.