CBSE Class 9 Answered
Differtiate Poriferon animals and Coleantrate animals?
Asked by | 25 Jun, 2008, 09:31: AM
Expert Answer
Poriferans are sedentary whereas coelenterates show both sedentary and motile forms.
The body of poriferans show poorly diffreentiated tissues whereas coelenterates show proper diffreentiation of tissues.
Mouth and digestive cavity ar absent in porifera but present in coelenterata.
Spicules are present in Porifera and absent in Coelenterata.
Nematocysts are present in Coelenterates but absent in Porifera.
Polymorphism is shown by coelenterates but not by poriferans.
Answered by | 25 Jun, 2008, 09:01: PM
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