When ann went to her doctor, he gave her a hearing test. during the test, the doctor presented tones to ann through earphones. the tones varied only along the loud-soft dimension (from very loud to very soft). the doctor asked ann to raise her hand whenever she heard a sound. the doctor was testing ann's

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.