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The Fishes MCQs

Free 56+ The Fishes MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Practise below with answers and explanations.

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The Fishes — MCQs for Pakistan government job tests

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The Fishes

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1.________vertebral column may have replaced notochord?

2.Ammocoete larvae grow from________ mm to about_________ cm over three years?

3.Chimaera belongs to subclass__________?

4.Most modern fishes are ________and spend much of their life searching for food?

5.The indian climing perch spends its life almost entirely on__________?

6.The bones of fishes are generally_________ dense than those of terrestrial vertebrates?

7.Elasmobranchs have a unique_________ mechanism?

8.Elkectroreception is the detection of_________ fields?

9.You can float because of two large, airfilled organs called_________?

10.Branchial arteries carry_________ to the gills and into gill filaments?

11.A fish expends__________ energy in support against the pull of gravity?

12.The common name of chimaera is_________?

13.Two major developments in vertebrate evolution were the appearance_______ and_______?

14.Subclass_________ have teeth modified into crushing plates?

15.Ostracoderms were relatively inactive __________that live on prehistoric lakes and sea?

16.Fishes show numerous adaptations to living in aquatic environments. It includes__________?

17.Primary site for enzyme secretion and food digestion__________?

18.Most primitive group of vertebrates _________?

19.Eggs hatch in approximately ________ weeks into ammocoete larvae?

20.Lampreys have __________ glands?

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