Which of the following statements is most consistent with the geologic record?Sponges and cnidarians first...
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Biology
Which of the following statements is most consistent with the geologic record?Sponges and cnidarians first evolved during the CambrianFossils of sponges and cnidarians (e.g. jellyfish) first appeared during the Cambrian, but these groups had ancestors that evolved before the CambrianFossils of brachiopods and arthropods (e.g. crabs, insects) first appeared during the Cambrian, but these groups had ancestors that evolved before the CambrianVertebrates evolved from echinoderms
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