Biology, 06.03.2021 01:50, KingKayyy2322

16. When your body needs additional energy, like when you run, things happen in your body systems to give you the additional food and oxygen you need in your cells. Which of the following is happening to send more energy to cells when you are running? 1. Your skeletal system gets stronger. II. Your digestive system breaks down food faster. III. Your heart pumps blood with more force. IV. Your lungs work harder and faster.

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16. When your body needs additional energy, like when you run, things happen in your body systems to...