_________ are the most evolved animals among vertebrates
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12
Answer:
Mammals are the most evolved animals among vertebrates.
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0
Answer:
hagfish
Explanation:
The earliest vertebrates resembled hagfish and lived more than 500 million years ago. As other classes of fish appeared, they evolved traits such as a complete vertebral column, jaws, and a bony endoskeleton. Amphibians were the first tetrapod vertebrates as well as the first vertebrates to live on land.
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