NEETZoologyBreathing and Exchange of Gases
Match List-I with List-II regarding respiratory organs in animals. List-I List-II (A) Flatworms (I) Moist cuticle (B) Earthworms (II) Gills (C) Insects (III) Simple diffusion over entire body surface (D) Aquatic arthropods (IV) Tracheal tubes Choose the correct answer from the options given below:
Options
- A(A)-(III), (B)-(I), (C)-(IV), (D)-(II)
- B(A)-(I), (B)-(III), (C)-(IV), (D)-(II)
- C(A)-(III), (B)-(I), (C)-(II), (D)-(IV)
- D(A)-(I), (B)-(III), (C)-(II), (D)-(IV)
Correct answer
A. (A)-(III), (B)-(I), (C)-(IV), (D)-(II)
Step-by-step solution
Based on the breathing mechanisms described in NCERT: (A) Flatworms (along with sponges and coelenterates) exchange O₂ with CO₂ by simple diffusion over their entire body surface. (A matches III) (B) Earthworms use their moist cuticle for gas exchange. (B matches I) (C) Insects have a network of tubes called tracheal tubes to transport atmospheric air within the body. (C matches IV) (D) Aquatic arthropods (and molluscs) use special vascularised structures called gills. (D matches II) Therefore, the correct matching