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प्रश्न
What are adaptations in fishes due to which they are aquatic?
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उत्तर
Certain adaptation characteristics in fish, due to which they are aquatic, include:
(i) Presence of gills for respiration
(ii) Fins for locomotion (swimming) and balance with a streamlined or spindle-shaped body
(iii) Cold-blooded (ecothermic)
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