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The growing of plants, burning of wood, and decomposition of living matter demonstrate how carbon can be in the _______ at the same time. a. atmosphere and biosphere b. biosphere and
geosphere c. geosphere and atmosphere d. atmosphere, biosphere, and geosphere
d. atmosphere, biosphere, and geosphere
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Asked 4/19/2013 4:59:09 PM
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Air is filtered, warmed, and moistened in the a. nose and mouth. c. lungs. b. throat. d. pharynx.
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Updated 4/12/2013 8:02:48 AM
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Air is filtered, warmed, and moistened in the a. nose and mouth.
Added 4/12/2013 8:02:48 AM
Air is filtered, warmed, and moistened in the a. nose and mouth. c. lungs. b. throat. d. pharynx.
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Updated 202 days ago|12/12/2015 1:04:02 AM
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Air is filtered, warmed, and moistened in the nose and mouth.
Added 202 days ago|12/12/2015 1:04:00 AM
This answer has been added to the Weegy Knowledgebase
The respiratory system is responsible for the exchange of gases that allows the body to perform important functions. How does oxygen diffuse within the lungs? a. It diffuses from the capillaries into the veins. c. It diffuses from the alveoli into the blood. b. It diffuses from the arteries into the capillaries. d. It diffuses from the blood into the alveoli.
Weegy: C. It diffuses from the alveoli into the blood Atmospheric air that enters the alveoli has a higher conc of oxygen and lower conc of carbon dioxide than the blood in the alveolar capillaries. [ Thus, a conc gradient for the two gases exists between the blood and alveolar air. Oxygen diffuses from the alveolar into the blood while carbon dioxide diffuses from the blood into the alveolar cavity. ] (More)
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Asked 4/12/2013 7:58:16 AM
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