Which one of the following pairs of animals comprises "Jawless fishes"
A. Lampreys and eels
B. Mackerals and rohu
C. Lampreys and hag fishes
D. Guppies and hag fishes

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1 Answers

Correct Answer - C
Lampreys and Myxine (has fish) belong to the class-Cyclostomata, group-Agnatha of Vertebrata. Agnatha have mouth without jaws. In these, mouth is ventral, suctorial and circular.

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