linkedin post 2017-09-12 05:30:54

METAZOAN FISSION. “A few metazoan (multicellular) species regularly undergo a body division into several units simultaneously, a process called fragmentation. Planarian fission and fragmentation generally represent direct reproduction in which each portion regenerates missing parts to become a complete new animal. Strobilation products, however, are only indirectly reproductive: proglottids are not regenerative but carry and release great numbers of eggs and die; ephyrae do not produce new polyps but mature into sexually reproducing medusae, the larvae of which become polyps.”

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