Which of the following is not correct

Options

(a) Sponges have tissue level of organisation
(b) Organ level of organisation is found in platyhelminthes
(c) In annelids,arthropods,mollusus,echinoderms and chordates organ system level of organisation is found
(d) Coelenterates,ctenophores and echinoderms have radial symmetry

Correct Answer:

Sponges have tissue level of organisation

Explanation:

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