The respiratory structure that comprises a cartilage as well as the ligaments would be the trachea which is the answer. The trachea which is known as windpipe is a tube connecting pharynx and larynx into the lungs allowing the air to pass through.
Since a secondary source is a source written after an event has occurred, I want to say that the answer is A. Hope this helped!<span />
The last one is false, the plates are almost always moving
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Both prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm, and DNA. The plasma membrane, or cell membrane, is the phospholipid layer that surrounds the cell and protects it from the outside environment.
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Wheezing happens when the airways are tightened, blocked, or inflamed, making a person's breathing sound like whistling or squeaking. Common causes include a cold, asthma, allergies, or more serious conditions, such as chronic obstructive pulmonary disease (COPD).
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