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Questions and Answers
What major characteristic replaced the notochord in lampreys during evolution?
Which group of chordates is known for its marine suspension feeding by burrowing through sediment?
Which class of vertebrates have genes associated with transmission of nerve impulses unique to them?
Which group of jawless fishes are believed to be the most likely ancestors of jawed fishes and are armored without jaws?
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Which ancestral chordate group is known for exhibiting a filter feeding mechanism through an excurrent and incurrent siphon?
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What evolutionary development allowed chordates to specify body regions through transcription factor genes?
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What is the main feeding behavior of lampreys?
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What characteristic distinguishes conodonts as the first vertebrates with mineralized skeletons?
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What is a common feature of Class Acanthodii's fins that resembles shark anatomy?
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Which class of fish has its head and neck armored with heavy bony plates and sharp bony blades in its jaw?
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What is the distinguishing feature of Elasmobranchii and Holocephali within Class Chondrichthyes?
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