Which of the following are 'multicellular gra | vedclass

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(A) The 'multicellular grade' of organization refers to organisms that consist of many cells but lack true tissues or organs. Sponges (Phylum $Porifer

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Sponges

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(A) The 'multicellular grade' of organization refers to organisms that consist of many cells but lack true tissues or organs. Sponges (Phylum $Porifera$) exhibit this cellular level of organization,where cells are arranged as loose cell aggregates. In contrast,Coelenterates exhibit tissue-level organization,and Vertebrates exhibit organ-system level organization. Prokaryotes are typically unicellular organisms.

Which of the following are 'multicellular grade' organisms?

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