respiratory system

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Across
  1. 3. is carried into the lungs by bronchi
  2. 4. are smaller branches of bronchi, and at the ends of these are alveoli
  3. 5. is a disease that causes the alveoli to enlarge.
Down
  1. 1. converts oxygen and glucose to carbon dioxide, water, and energy.
  2. 2. this type of cancer occurs when carcinogens cause an uncontrolled growth of cells
  3. 4. this verb brings air into the lungs and removes waste gases