Biology, 29.07.2020 22:01 jannadwhite2435
6. In addition to being an airway, the is the location of the human vocal cords
7. Cilia in cells along the trachea and nasal passages secrete which traps dirt and particles from the air.
8. Air is only, approximately 21% oxygen. The majority of air is .
9. The medulla oblongata controls the contraction and relaxation of the , causing the lungs to inflate and deflate during breathing.
10. Explain the process of breathing. Begin with inhalation and describe the route that the air takes to the lungs, and what happens when the air reaches the lungs. Include in your description the terms: mouth, nose, pharynx, trachea, bronchi, lungs, alveoli, carbon dioxide, oxygen, and capillaries
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Tropical rain forests support more species per unit area than any other terrestrial ecosystem. what is one way rain forests are important to the health of the biosphere?
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Which statement is true for bacteria a. bacteria have complex internal structures b. all bacteria are spiral in shape c. all bacteria cause disease in animals d. bacteria break down some foods
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6. In addition to being an airway, the is the location of the human vocal cords
7. Cilia in cells...
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