Question:
Match the following related to adaptations in aquatic habitat:
Match the following related to adaptations in aquatic habitat:
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TMAO is a key osmolyte in marine cartilaginous fishes.
Updated On: Jun 20, 2026
- (i-d), (ii-c), (iii-b), (iv-a)
- (i-c), (ii-d), (iii-a), (iv-b)
- (i-a), (ii-d), (iii-c), (iv-b)
- (i-a), (ii-b), (iii-d), (iv-c)
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The Correct Option is B
Solution and Explanation
Step 1: Understanding aquatic adaptations.
Different aquatic organisms show specialized physiological and behavioral adaptations to survive in water environments.
Step 2: Matching gelatinous cocoon.
African lungfish forms a gelatinous cocoon during aestivation → (i - c).
Step 3: Salty fluid adaptation.
Penguins excrete excess salt through nasal glands → (ii - d).
Step 4: Trimethyl amine oxide (TMAO).
Cartilaginous fishes maintain osmotic balance using TMAO → (iii - a).
Step 5: Anadromous migration.
Salmon migrate from sea to freshwater for spawning → (iv - b).
Step 6: Final conclusion.
Thus correct matching is (i-c), (ii-d), (iii-a), (iv-b).
Different aquatic organisms show specialized physiological and behavioral adaptations to survive in water environments.
Step 2: Matching gelatinous cocoon.
African lungfish forms a gelatinous cocoon during aestivation → (i - c).
Step 3: Salty fluid adaptation.
Penguins excrete excess salt through nasal glands → (ii - d).
Step 4: Trimethyl amine oxide (TMAO).
Cartilaginous fishes maintain osmotic balance using TMAO → (iii - a).
Step 5: Anadromous migration.
Salmon migrate from sea to freshwater for spawning → (iv - b).
Step 6: Final conclusion.
Thus correct matching is (i-c), (ii-d), (iii-a), (iv-b).
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