Jain Biology ► [01] Biology : Science Of Living Organisms ► 2. Phylum Porifera:

Posted: 14.09.2009

All the sponges are included in this phylum; aquatic animals mostly marine; though multicellular are incapable of any movement; cells are not organized into tissues and organs. There is neither a mouth nor a digestive tract; reproduction is asexual (by budding or by formation of gemmules) and sexual.

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