Flatworms are
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Flatworms are
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Which of the following statements is incorrect about sea walnuts?
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How many classes are there in Phylum Platyhelminth
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The organs of taste in cockroach are present in
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Lung books are the respiratory organs of
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Most primitive arthropods belong to the class
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Division of the body into head, thorax and abdomen is a characteristic of
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Hemocoelic body cavity is a characteristic of
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Pronounced cephalisation is a characteristic
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Metamerically segmented, bilaterally symmetrical animals bearing jointed appendages. These are characteristic of
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Sperms of Ascaris are characteristic because they are
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Which of the following has no alternate host?
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