The water vascular system of echinoderms
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Vertebrates and tunicates share
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Salamander belongs to the class:
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Radial symmetry is found in
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Which of the following characters is not typical to class Mammalia?
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Periplaneta belongs to which phylum?
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Notochord occurs throughout life and all through the length of the body in
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Cnidaria is characterized by
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Ascaris lumbricoides lives in the intestine of
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The body cavity of Ascaris is pseudocoel because
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