generic · 12th TN - English Medium · ZOOLOGY · Page 195

Adaptations of aquatic animals

Chapter 11: CHAPTER 11 · ZOOLOGY · EN medium

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. The pectoral fins and dorsal fins act as stabilizers or balancers and the caudal fin helps in changing the direction as a rudder. . Arrangement of body muscles in the form of bundles (myotomes) help in locomotion. . Stream lined structure helps in the swift movement of the animals in water. . Respiration by gills making use of gases dissolved in water. . Presence of air-bladders filled with air for buoyancy. . Presence of lateral-line system. They function as rheoreceptors which is helpful in echolocating objects in water.

📖 Class 12 Zoology English 2024 Edition www.tntextbooks.in · Page 195

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. The pectoral fins and dorsal fins act as stabilizers or balancers and the caudal fin helps in changing the direction as a rudder. . Arrangement of body muscles in the form of bundles (myotomes) help in locomotion.

. Stream lined structure helps in the swift movement of the animals in water. . Respiration by gills making use of gases dissolved in water.

. Presence of air-bladders filled with air for buoyancy. . Presence of lateral-line system.

They function as rheoreceptors which is helpful in echolocating objects in water.

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