NEETZoologyBreathing and Exchange of Gases
Match List-I with List-II regarding the respiratory structures used by frogs at different life stages and in different habitats. List-I List-II A. Adult frog in water 1. Gills B. Adult frog on land 2. Skin only C. Tadpole stage 3. Buccal cavity, skin, and lungs Choose the correct answer from the options given below:
Options
- AA-2, B-3, C-1
- BA-1, B-3, C-2
- CA-2, B-1, C-3
- DA-3, B-2, C-1
Correct answer
A. A-2, B-3, C-1
Step-by-step solution
Frogs exhibit different modes of respiration depending on their life stage and environment. In water, adult frogs respire exclusively through their highly vascularised moist skin (cutaneous respiration). Thus, A matches with 2. On land, adult frogs utilise their buccal cavity, skin, and lungs for gaseous exchange. Thus, B matches with 3. The larval stage of a frog, known as a tadpole, is fully aquatic and respires using gills, similar to fishes. Thus, C matches with 1. Therefore, the correct matching is A-2, B-3, C