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Which of the following statements is true?a. in deuterostome animals the embryonic mouth originates from the blastopore b. diploblastic animals have two embryonic tissue layers - an outer ectoderm and an inner mesodermc. the members of the phylum Porifera are all triploblastic because they possess an ectoderm, a mesoderm, and an endothermd. the mouth in protostomes originates from the embryonic blastoporee. the protostome anus originates from the embryonic blastopore
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