Biology, asked by upaul578, 7 months ago

Dipleurula concept of origin of chordata

Answers

Answered by ssasreeja

Explanation:

Chordates evolved from some deuterostome ancestor (echinoderms, hemichordates, pogonophorans etc.) as they have similarities in embryonic development, type of coelom and larval stages. Fossils of the earliest vertebrates are known from the Silurian-Devonian period, about 400 million years ago.

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