revandrealewis3 revandrealewis3
  • 20-10-2019
  • Biology
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The vertebrates lung first appeared in

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ashleydiaz1012
ashleydiaz1012 ashleydiaz1012
  • 20-10-2019
The vertebrates first appeared in the fossil record, as a jawless fish, approximately 550 million years ago at the start of the Cambrian period
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bugg30
bugg30 bugg30
  • 28-07-2020

Answer:Fish

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