revandrealewis3
revandrealewis3
20-10-2019
Biology
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The vertebrates lung first appeared in
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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
28-07-2020
Answer:Fish
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