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1. All of the following actions are part of exhalation EXCEPT A. the rib cage contracts inward B. the volume of the chest cavity decreases C. the diaphragm contracts and pulls downward D. the pressure within the chest cavity increases 2. Which of these statements DOES NOT describe the trachea? A. it is also called the voice box B. It carries air to and from the lungs C. Its lower end branches into smaller tubes It contains rings of cartilage that prevent it from collapsing 3. Which of the following statements about the circulatory system is false? A. Pumps the blood with the oxygenated red blood cells from the lungs via the arteries throughout the body. B. Absorbs oxygen from the air and transfer it to all parts of the body. C. Supplies tissues in the body with oxygen and other nutrients, transports hormones, and removes unnecessary waste products. D. To transport carbon dioxide to the body's cells and carry away oxygen from the cells 4. From what source do cells get their food? A. Blood B. Oxygen C. Carbon dioxide D. Other cells 5.Which type of blood vessels carries blood away from the heart? A. Veins B. Arteries C. Capillaries D. All of the above 6. Why is oxygen important to blood and to the cells? A. Oxygen helps the blood to clot. B. Oxygen is necessary for cell growth and energy. C. Oxygen brings food to the cells. D. Oxygen is not important carbon important substance to the body. dioxide is the most
Sagot :
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