Which one of the following is not correctly matched?
A
Mollusca - Pseudocoel
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B
Cnidaria - Nematocyst
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C
Annelids - Chloragogen cells
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D
Echinodermata - Water vascular system
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Solution
The correct option is A Mollusca - Pseudocoel Phylum Mollusca animals are bilaterally symmetrical, triploblastic and coelomate. Cnidarians are characterized by Nematocysts. Annelids have chloragogen or liver cells and Echinodermata are characterized by water vascular system.