Animal KingdomMedium
Question
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Options
A.Both A) and R) are true and R) is the correct explanation of A)
B.Both A) and R) are true but R) is not the correct explanation of A)
C.A) is true but R) is false
D.A) is false but R) is true
Solution
Both $(A)$ and $(R)$ are true and $(R)$ is the correct explanation of $(A)$.
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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