(i) It consists of a network of trachea, that open through 12 pairs of small holes called spiracles present on the lateral side of the body. |
(ii) Thin branching tubes carry oxygen from the air to all the parts. |
(iii) The opening of the spiracles is regulated by sphincters. |
(iv) Exchange of gases take place at the tracheoles by diffusion. |
A) Only (i)
B) (i), (ii) and (iii)
C) (ii), (iii) and (iv)
D) All of the above
Correct Answer: C
Solution :
[c] In cokroach, respiratory system consists of a network of trachea, that open through 10 pairs of small holes called spiracles present on the lateral side of the body.You need to login to perform this action.
You will be redirected in
3 sec