Question

How many pairs of respiratory pores are found in a cockroach ?

(A) 2

(B) 6

(C) 8

(D) 10

Answer 1

Correct option is: (D) 10

Cockroaches possess 10 pairs of spiracles which help in respiratory action. These are the small openings on the sides of the body which serve as muscular valves paving the way to the respiratory system. The actual respiration occurs by the trachea which is a system of tubes attached to the spiracles on all body segments.