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Health Sciences 11 Online
OpenStudy (anonymous):

PLEASE HELP!!! WILL FAN AND MEDAL!!!! Oxygen enters the blood in the 1 bronchi 2 pharynx 3 larynx 4 alveoli The breathing process is controlled by 1 the pharynx 2 blood vessels 3 rib muscles Cigarette use in the United States has remained constant in the last 50 years. true false Smokeless tobacco is much less risky for your health than cigarettes. true false

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