Which of the following animals is a true fish | vedclass

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(A) The correct answer is $A$ (Hagfish).$1$. Hagfish $(Myxine)$ belongs to the class $Cyclostomata$ under the phylum $Chordata$ and is considered a tr

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Hagfish

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(A) The correct answer is $A$ (Hagfish).$1$. Hagfish $(Myxine)$ belongs to the class $Cyclostomata$ under the phylum $Chordata$ and is considered a true fish (jawless fish).$2$. $Ichthyophis$ is an amphibian,not a fish.$3$. Ray-fish is a common name often used for $Raja$ (skate) or $Torpedo$ (electric ray),but in the context of standard biological classification questions,Hagfish is the primary representative of jawless fish $(Agnatha)$. However,if the question implies 'true fish' as $Osteichthyes$ or $Chondrichthyes$,Hagfish is a craniate fish.$4$. Dolphin is a mammal,not a fish.

Which of the following animals is a true fish?

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Select the incorrect statements with respect to Cyclostomes:
$(a)$ They lack scales and paired fins.
$(b)$ They have a circular mouth with jaws.
$(c)$ They bear $6-15$ pairs of gills.
$(d)$ They migrate to deep sea for spawning.
Choose the most appropriate answer from the options given below:

Which one of the following pairs of animals comprises 'jawless fishes'?

Which jawless fish lays eggs in freshwater,and after metamorphosis,its $Ammocoetes$ larvae return to the ocean?

What type of endoskeleton is found in cyclostomes?

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