Given below are two statements.
Statement I: All tetrapods are vertebrates.
Statement II: All vertebrates are chordates.
In the light of the above statements, choose the most appropriate answer from the options given below.

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Statement I is incorrect but statement II is correct.

Both statement I and statement II are correct.

Both statement I and statement II are incorrect.

Statement I is correct but statement II is incorrect.

answer is B.

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Detailed Solution

Both statements are correct.

Tetrapoda and Pisces are two groups of Gnathostomata which is a group of Vertebrata. Tetrapods include amphibians, reptiles, birds, and mammalsare which are typically characterised by the presence of four limbs. All tetrapods have a vertebral column. Therefore, all tetrapods are vertebrates.

Vertebrates are a subphylum of chordates. They are characterised by the presence of a vertebral column that replaces the notochord during development. Since all vertebrates have, at some stage in their development, the features characteristic of chordates, it follows that all vertebrates are chordates.

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