Author Question: To complete gas exchange, ____________________ have thin, flexible membrane walls surrounded by a ... (Read 62 times)

lbcchick

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To complete gas exchange, ___________________ _ have thin, flexible membrane walls surrounded by a network of microscopic capillaries.
 Fill in the blank(s) with correct word

Question 2

The ___________________ _ acts like a lid, covering the larynx during swallowing.
 Fill in the blank(s) with correct word



welcom1000

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Answer to Question 1

alveoli

Answer to Question 2

epiglottis



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