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Animal Kingdom question

2022 · Q54
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Animal Kingdom question

2022 · Q54

NEETBiologyAnimal KingdomMCQ+4 / −1

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : All vertebrates are chordates but all chordates are not vertebrates.

Reason (R) : Notochord is replaced by vertebral column in the adult vertebrates.

In the light of the above statements, choose the most appropriate answer from the option given below:

  1. A
    Both (A) and (R) are correct and (R) is the correct explanation of (A)
  2. B
    Both (A) and (R) are correct but (R) is not the correct explanation of (A)
  3. C
    (A) is correct but (R) is not correct
  4. D
    (A) is not correct but (R) is correct
View written solutionFree

Correct answer: A

Option (a) is the correct answer because all chordates are divided into three subphyla - Urochordata, Cephalochordata and Vertebrata. In subphylum Vertebrata, notochord is replaced by bony or cartilaginous vertebral column in adults. Therefore, all vertebrates are chordates but all chordates are not vertebrates.

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