how does c rings of cartilage on the trachea support the gas exchange system in mammals? And how does chitin help support the trachea in insects against gravity, for gas exchange? What are some similarities between these two support and differences?
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Rings of cartilage are present in the trachea because it provide flexibility and support to the trachea permitting it to move it and flex when breathing. ... Cartilage is a strong but flexible tissue. it does not allow collasping in trachea.
Chitin is one of the most important biopolymers in nature. It is mainly produced by fungi, arthropods and nematodes. In insects, it functions as scaffold material, supporting the cuticles of the epidermis and trachea as well as the peritrophic matrices lining the gut epithelium.
both are present in trachea.but catilage in mammals and chitin in insects
hope it helps you..
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