I believe it is “animals and plants caanot directly use all the nitrogen found in our atmosphere”
Answer:
flagella
Explanation:
Many single-celled organisms have a structure that facilitates mobility within the cell's environment. These often take the form of flagella, thin structures that emanate from the cell wall and push into the outer environment.
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The Respiratory zone includes the alveoli, while the conducting zone includes the trachea.
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What is the function of the trachea?</h3>
Your windpipe, or trachea, is a component of your airway system. Your lungs get oxygen-rich air through channels called airways. Additionally, they transport carbon dioxide, a waste gas, from your lungs. Air enters your body through your nose, passes through your larynx, and then descends through your windpipe. Or, to put it another way, the trachea is a little tube that joins the larynx to the lungs' bronchi. It's also referred to as a "windpipe." The windpipe is packed with mucus to trap microorganisms since it is vulnerable to many illnesses when air is inhaled through this pipe.
To learn more about the trachea, visit:
brainly.com/question/3700873
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