Statement (S). Marine lampreys migrate to rivers for spawning
Reason (R). Marine lampreys return to sea water after spawning

Movement of fishes from freshwater to marine water for spawning is

From the following general characters find out corresponding Class with an Example a) Exclusively marine, triploblastic, spines on the skin, radially symmetrical in the adult and bilaterally symmetrical in the larval stage. b) Marine, they migrate towards freshwater for spawning, then their larvae retum to ocean after metamorphosis. c) Triploblastic, bilaterally symmetrical, coelomate and metamerically segmented animals.

Statement(S). Marine fishes have aglomerular kidneys Reason(R ). Aglomerular kidneys increase the loss of water through urine

Statement(S). Marine fishes have aglomerular kidneys Reason(R ). Aglomerular kidneys increase the loss of water through urine

Migration exhibited by marine lampreys is

Migration exhibited by marine lampreys is

After spawning , adult lampreys

After spawning , adult lampreys

How do marine animals adapt to hypertonic sea water?