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Question

Radial symmetry expressed in pentamerous divisions and lack of cephalization are characteristics of the phylum


A
Mollusca
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B
Coelenterata
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C
Echinodermata
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D
Porifera
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Solution

The correct option is C Echinodermata
Mollusca consists of animals, which exhibit bilateral symmetry without body cavity. 
Coelenterata consists of radially symmetrical organisms with tissue level organisation. 
Porifera consists of animals with asymmetrical symmetry and cellular level organisation. 
Echinodermata consists of organisms, which are radially symmetrical and five equal divisions with lack of cephalization. 
So, the correct answer is option C.

Biology

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