Where does gas exchange occur in the lung?
A) alveolus
B) primary bronchus
C) pulmonary artery
D) terminal bronchiole
E) trachea
Answer: A) alveolus
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What will be an ideal response?
Which of the following is the proper sequence of retinal processing?
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a. True b. False Indicate whether the statement is true or false
The muscularis layer of the alimentary canal contain which of the following?