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Echinodermata

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Question

Choose the correct answers from the alternatives given.
All of the following are protostomes except:

A

arthropods

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B

annelids

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C

echinoderms

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D

molluscs

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Solution

The correct option is C echinoderms
Protostomes are primitive invertebrates while deuterostomes include echinoderms and chordates. This division helps in understanding the relationships of different groups of animals. Protostomes include flatworms, annelids, arthropods, molluscs and some minor phyla. So, the correct answer is "echinoderms".

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