<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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ANSWER:
D. Chemical energy
The answer is False. Carbohydrates are made up of proteins. Hoped I helped. :)
Answer:
It helps them figure out what was in the area thousands of years ago