Answer alveoli and blood vessels
The respiratory bronchioles have single alveoli off their walls. ... The respiratory bronchioles lead into alveolar ducts, (which are surrounded by smooth muscle, elastin and collagen), which lead into the alveolar sacs. These have several alveoli, surrounded by blood vessels - from the pulmonary system.
Explanation:
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The digestion of certain fats begins in the mouth, where short-chain<span> lipids break down into </span>diglycerides<span> because of </span>lingual lipase<span>. The fat present in the small intestine stimulates the release of </span>lipase<span> from the pancreas, and </span>bile<span> from the liver enables the breakdown of fats into fatty acids.</span>
What is the correct sequence of steps in cellular respiration, starting with glucose?
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The answer is:
C. Cell, tissue, organ, organ system, organism
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