Adaptations of aquatic animals

Adaptations of aquatic animals . 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. XII Std Zoology Chapter XII Std Zoology Chapter Organisms and Populations