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Give the approximate bond angle for a molecule with a trigonal planar shape.
Primary Bronchus
The major air passage that branches from the trachea into the lungs, dividing into smaller bronchi.
Alveoli
Small air sacs in the lungs where gas exchange between the air and blood occurs.
Hilus
A part of an organ where blood vessels, nerves, and other structures enter or exit.
Oropharynx
A part of the pharynx situated between the soft palate and the epiglottis, involved in swallowing.
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Q155: Use the molecular orbital diagram shown to