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Question

Which phylum belongs to deuterostomes?

A
Echinodermata
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B
Mollusca
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C
Arthropoda
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D
Annelida
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Solution

The correct option is A Echinodermata
Deuterostomia is a group of animals including those of the phyla Echinodermata (like Starfish, sea urchins), Chordata (like sea squirts, lancelets, and vertebrates), Chaetognatha (like arrow worms) and Brachiopoda (like lamp shells) - classified together on the basis of embryological development and by molecular criteria.
So, the correct answer is option A.

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