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Which one of the following statements is true?
(a)All chordates are vertebrates.
(b)All vertebrates are chordates.
(c)All chordates are not vertebrates.
(d)Both and

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Important Questions on Animal Diversity - II (Chordata Phylum)
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Besides the basic chordate characters, vertebrates also have

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Jawless fishes are placed under the division

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All living members of the class-Cyclostomata are

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Which of the following statements is not correct about cyclostomes?

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Cyclostomes are marine but migrate to freshwater

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Cranium and vertebral column are cartilaginous in class

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Which of the following set includes jawless fishes?

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The marine animals with a streamlined body having cartilaginous endoskeleton are placed in class
