16. Which type of fish has only dorsal and caudal fins? a. jawless fish b. bony

Question

16. Which type of fish has only dorsal and caudal fins? a. jawless fish b. bony fisth d. cartilaginous fish none of these 17. Which type of fish has a bony internal skeletoe? a Chondrichthyes b. Osteichthyes e. Agnatha d. none of these Fish stay afloat using which method? a ampullac of Lorenzini 18. b. lateral line e. countershading d. swim bladder 19. Elongated body, slit-like mouth, barbels a. hagfish b. baracuda e. Moray eel d. lamprey Which type of fish is shown? a. 20. jawless fish cartilaginous fish b. c. d. bony fish none of these Which body type is torpedo shaped and streamlined for fast, continual swimming? a. compressed b. elongate 21. c. depressed d. fusiform

Explanation / Answer

16. Bony fishes

17. Osteichthyes

18. Swim bladder

19. Hagfish

20. Cartilaginous fish

21. Elongate

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