What is the relationship between respiration and cellular respiration? What is the difference between a partial blockage and an obstruction blockage?
What is the first aid for choking?

Choose the molecule that is described by each phrase. energy used during long activities:

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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.