Question

Give reasons for the following:
a) The glottis is guarded by epiglottis.
b) The lung alveoli are covered with blood capillaries
c) The wall of cartilage is supported by cartilage rings.​

Answer 1

(ii) The lung alveoli are covered with blood capillaries. (i) The glottis is guarded by epiglottis since this prevents entry of food in wind pipe (trachea). ... When food enters wind pipe, it chokes it, leading to death of person.

Answer 2

Answer:

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