The units by which sound intensity, or loudness is measured is known as what?

What is the substance produced in the mouth, which contains enzymes that break down food?

A spiral tube in the inner ear that senses sound vibrations and transmits them to the auditory nerve is known as what?

The part of the middle ear that vibrates in response to sound is what?

A sticky, colorless substance formed by bacteria in the mouth that coats the teeth and slowly dissolves enamel is known as what?

The tissue by which nerve impulses travel from the retina to the brain is what?

What is the innermost, light-sensitve area of the eye, composed of photoreceptors that convert light into nerve impulses and electrical signals?

What is the clear part of the eye that focuses light on the retina?

The black opening in the middle of the iris through which light passes is known as what?

What is the colored part of the eye that constricts and dilates the pupil?

The clear tissue covering the front of the eye is known as what?

What are holes in the teeth that are caused by plaque eating away at the teeth?

What is inflammation of the gums called?

What is the infection in which bacteria gets beneath the gums and destroys gum and bone?

A condition that makes you have bad breath is what?