They increase in number and they are more specialized
Any area in a damp or closed surface.
Answer:Mercury, Venus, Earth, and Mars
Explanation:
<span>Air is breathed in, it goes through the pharynx (if you are breathing through your nose), down the trachea (lung pipe), and into the lungs. Air is breathed in, it goes through the pharynx (if you are breathing through your nose), down the trachea (lung pipe), and into the lungs.
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