First slide
Respiratory Organs
Question

Match the items given in column I with those in column II and select the correct option.

 Column I Column II
(a)General body surface(i)Calotes
(b)Lungs(ii)Pinctada
(c)Tracheae(iii)Locusta
(d)Gills(iv)Hydra
 (a)(b)(c)(d)
(1)iviiiiii
(2)iiiiiiiv
(3)iiiiviii
(4)iiiiiiiv

Moderate
Solution

General body surface-Hydra (a cnidarian)
Lungs-Calotes (garden lizard; a reptile)
Tracheae-Locusta (locust; an insect)
Gills-Pinctada (pearl oyster; a mollusc)

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