if ctenophores are the sister group to all other animal taxa excluding cnidaraians
Added by David G.
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Ctenophores (commonly known as comb jellies) and cnidarians (which include jellyfish, corals, and sea anemones) are both part of the larger group known as Metazoa, which encompasses all animals. Show more…
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Ctenophores lack the Hox genes found in all other animals. They have a radially symmetrical body plan, are diploblastic, and have cells organized into tissues. Based on this information, which of the following is the most appropriate group in which to classify the Ctenophore? a) Deuterostomes b) Bilaterians c) Sister group to all other animals d) Protostomes e) Sponges
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Which of the following statements regarding the diversification of animals is supported by the currently available evidence? - Sponges are a paraphyletic group of organisms. - Ctenophores are basal metazoans. - Most animals belong to the clade Bilateria. - Animals descended from multiple ancestors.
Shaiju T.
If zoologists conclusively determined that the cells found within the mesoglea of virtually all cnidarians and ctenophores are mesodermal in origin, this discovery would establish: Select one: a. that cnidarians and ctenophores are true diploblasts. b. that cnidarians and ctenophores are true triploblasts. c. that cnidarians and ctenophores are very closely related to the Placozoa. d. that cnidarians and ctenophores are derived from the poriferan lineage.
Madhur L.
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