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Q. Schizocoelomates and entero coelomates are

Jharkhand CECEJharkhand CECE 2007

Solution:

The coelom is a body cavity which arise in embryonic mesoderm. The animals which possess true coelom are called eucoelomates. True coelom is of two types schizocoelom and enterocoelom. The schizocoelom develops as a split in mesoderm sheet eg,. annelids, arthropods, whereas the enterocoelom arises from enterocoelomic pouches eg, echinoderms, Chordata. Acoelomates are the group of animals in which body cavity or coelom is absent, e.g., porifers, coelentrates. Pseudocoelom is the false cavity that develops from blastocoel and is not lined by peritoneum e. g., roundworms.