11. If more than single species of fish is cultured at a time, then it is called
12. Pisciculture is rearing and production of
13. Induced breeding technique is used in
14. Inand fisheries are
15. Isinglass is employed in
16. Some elasmobranchs have modified pelvic fin for copulation called:
17. In India which of the following genera of earthworms is extensively used for vermiculture
18. Sucking mouth and rasping tongue is present in :
19. Identify the edible freshwater teleost
20. Which of the followings aortic arches form pulmonary artery in lung fishes?
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