The graph below shows the lung function of test subjects at three different ages who had exposure to ozone gas from the same source and location. According to the graph, which statement best describes the effects of ozone on human health?

At 0.2 ppm, lung function is worse in subjects older than 20.
At 0.3 ppm, lung function is better in subjects older than 20.
Subjects at age 20 have higher lung function than subjects at age 33.
Subjects at age 27 have lower lung function than subjects at age 20.

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.