Which cells form the mucus escalator?
A) type I alveolar cells
B) ciliated cells
C) goblet cells
D) type II alveolar cells
E) alveolar macrophages
Answer: B) ciliated cells
Biology & Microbiology
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Unlike the rigid protein framework in bacteria, a eukaryotic cell's ____ can be remodeled quickly, enabling the cell to change its shape
Fill in the blank with the appropriate word.
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Dolphins have a beak whereas porpoises have a rounded blunt head
Indicate whether the statement is true or false
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What’s the role of oxygen in cellular respiration?
What will be an ideal response?
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In the United States, approximately how many urinary tract infections occur annually?
a) 1 million b) 8 million c) 10 million d) 25 million
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