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List 6 (six) factors that can affect our breathing rate. For each factor, explain briefly how they can affect the breathing rate.

5. What function do the following have in the respiratory system? (6 marks)
a. C- shaped rings of cartilage

b. Cilia

c. Alveoli

Respuesta :

abigaylesichling1

Answer:

a) provides structure to the Trachea. b) hairs on a cell that help it move around. C) Exchanges oxygen and carbon dioxide molecules to and from the blood stream
The correct answer would be B.

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