BIOLOGICAL CLASSIFICATION
KINGDOM ANIMALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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scaleless fish including lampreys and hagfish
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jawless fish
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bony fish
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fishy fish
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cartilaginous fish
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Explanation:
Detailed explanation-1: -The superclass Agnatha describes fish that lack jaws and includes the extant species of hagfish and lampreys.
Detailed explanation-2: -There are two categories of jawless fish: hagfish and lampreys.
Detailed explanation-3: -No paired appendages are present. Skin is soft and smooth and is devoid of any scales. Exoskeleton is absent but the endoskeleton is cartilaginous and with no bones. Examples: Petromyzon, Lampetra, and Myxine.
Detailed explanation-4: -There are two extant groups of jawless fish: hagfish and lamprey. Modern taxonomic studies suggest lamprey and hagfish to be only distantly related, with lamprey being a sister group of jawed vertebrates (Forey and Janvier, 1994).
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