Which of the following statements is most consistent with

Last updated: 7/9/2022

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