One difference between the pseudocoel found in the phylumNematoda (roundworms) and the coelom found in thephylum Annelida (segmented worms) is that the pseudocoeldevelops between the mesoderm and the _____________in roundworms, and the coelom develops within the_____________ in segmented worms.a. ectoderm; mesoderm c. ectoderm; endodermb. endoderm; mesoderm d. endoderm; ectoderm

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