Question 5 (a) Tick the correct answer: (a) In cockroaches, air enters the body through (i) lungs (ii) gills (iii) spiracles (iv) skin
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The answer is (iii).
In cockroaches, air enters the body through their spiracles.
Spiracles are external openings found in some animal species such as insects, The function of spiracles is linked to respiration, helping oxygen to reach internal respiratory organs, such as tracheae in insects