How do organisms of Porifera differ from those of Cnidaria ?

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Solution

Characteristics of Porifera:
(i) Cellular level of organisation. (0.5 marks)
(ii) Digestion is intracellular.(0.5 marks)
(iii) Appendages are absent in poriferans.(0.5 marks)

Characteristics of Cnidaria:
(i) Tissue level of organisation.(0.5 marks)
(ii) Digestion is both extracellular and intracellular.(0.5 marks)
(iii) They have appendages in the form of tentacles.(0.5 marks)

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