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NEET 2025
Exam
NEET
Year
2025
Subject
Botany
Chapter
Animal Kingdom

NEET 2025 · Botany · Animal Kingdom

Given below are two statements: one is labelled as Assertion (A)...

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 vertebrate. Reason (R) : The members of subphylum vertebrata possess notochord during the embryonic period, the notochord is replaced by cartilaginous or bony vertebral column in adults. In the light of the above statements, choose the correct answer from the options given below:

Options

  1. ABoth (A)(A) and (R)(R) are true and (R)(R) is the correct explanation of (A)(A)
  2. BBoth (A) and (R) are true but (R) is not the correct explanation of (A)
  3. C(A) is true but (R) is false
  4. D(A) is false but (R) is true

Correct answer

A. Both (A)(A) and (R)(R) are true and (R)(R) is the correct explanation of (A)(A)

Step-by-step solution

Both (A)(A) and (R)(R) are true and (R)(R) is the correct explanation of (A)(A). The members of subphylum vertebrata possess notochord during the embryonic period. The notochord is replaced by a cartilaginous or bony vertebral column in the adult. Thus, all vertebrates are chordates but all chordates are not vertebrates.
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