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Question

Triploblastic, unsegmented, acoelomate exhibiting bilateral symmetry and reproducing both asexually and sexually, with some parasitic forms. The above description is of phylum

A
Annelida
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B
Ctenophora
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C
Cnidaria
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D
Porifera
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E
Platyhelminthes
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Solution

The correct option is C Platyhelminthes
The Platyhelminthes or flatworms are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates. They are acoelomates and have no specialised circulatory and respiratory organs. The Annelids are bilaterally symmetrical, triploblastic, coelomate generally segmented organisms. Some Ctenophores are diploblastic and cnidarians are also diploblastic. Porifera are not bilaterally symmetrical.
So, the correct answer is option E.

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