Question

9. The given box lists names of some animals. Select
the option that correctly identifies animals with same
respiratory organs.
(1) Dragonfly (ii) Paramecium
(1) Prawn
(iv) Dolphin
(v) Grasshopper (vi) Cockroach
(vii) Earthworm (viii) Salmon
A (ii), (iv) and (viii) only
B. (v). (vi) and (vii) only
C (i), (ii) and (vii) only
(1), (v) and (vi) only​

Answer 1

]*The respiratory organ of the given animals are;  

• Dragonfly:Respire through air spiracle in the abdomen.In larval stage                                          through gills.
• Paramecium:Respiration through body surface by simple diffusion
• Prawn:Through gills.
• Dolphin:Through lungs.
• Grasshopper:Air filled tubes called trachea.
• Cockroach:Trachea
• Earthworm:No special organ for respiration.It is through moist skin and capillaries.
• Salmon: Through gills  .

*From the above data it is clear that Grasshopper and cockroach ,prawn and salmon,Earthworm and Paramecium has same respiratory organ.