Various technical terms related to respiratory system of different organisms are hidden in the given word grid. Which of the following are present in the given word grid?
(i) The air tubes of insects. (ii) Skeletal structure which protects the lungs. (iii) The opening through which humans inhale air. (iv) Small opening on the sides of the body of an insect. (v) A flap-like structure that covers the glottis at the time of swallowing in humans. (vi) Respiratory organ of fish.

Options

A. (i) and (vi) only
B. (ii), (v) and (vi) only
C. (iii) and (iv) only
D. (iv) and (v) only

Answer

A

Explanation

(i) - Tracheae, (ii) - Ribcage, (iii) - Nostril, (iv)-Spiracle, (v)- Epiglottis, (vi)-Gill