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Topic: Archaeocyantha

EXECUTIVE POWER

Iran

ANALYSIS

Pakistan

Family compact

	ca Porifera Sponges or poriferans are animal ...
		Demosponges Demosponges are less common than other sponges, but that is probably because many demosponges demosponges have skelatons made only of relatively soft spongin that does not fossilize well.
		The fossil Archaeocyantha Archaeocyantha may also belong here, though their skeletons are solid rather than separated into spicules.
		It has been suggested that the sponges are paraphyletic paraphyletic to the other animals.
	www.biodatabase.de /sponge (633 words)

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