In cockroaches, air enters the body through:
(a) lungs
(b) gills
(c) spiracles
(d) skin

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Solution

(c) spiracles
In insects (such as cockroaches, grasshoppers), the tiny holes called spiracles are present on the body. Air enters the body through these holes.

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Similar questions

In cockroaches, air enters the body through :
(a) lungs
(b) gills
(c) spiracles
(d) skin

(a) In cockroaches, air enters the body through

(i) lungs

(ii) gills

(iii) spiracles

(iv) skin

(b) During heavy exercise, we get cramps in the legs due to the accumulation of

(i) carbon dioxide

(ii) lactic acid

(iii) alcohol

(iv) water

(i) 9 - 12

(ii) 15 - 18

(iii) 21 - 24

(iv) 30 - 33

(d) During exhalation, the ribs

(i) move outwards

(ii) move downwards

(iii) move upwards

(iv) do not move at all

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