Most sponges exhibit:

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(C) Sponges (Phylum $Porifera$) are primarily primitive multicellular organisms.Most sponges are asymmetrical,meaning their body cannot be divided int

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Asymmetry.

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(C) Sponges (Phylum $Porifera$) are primarily primitive multicellular organisms.Most sponges are asymmetrical,meaning their body cannot be divided into two equal halves by any plane passing through the center.Some sponges may exhibit radial symmetry,but asymmetry is the most characteristic feature of the majority of species in this phylum.

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