Given below are two statements.
Statement I The members of vertebrate possess notochord during the enibryonic period of development.
Statement II In Hemichordata, the notochord is replaced by a cartilaginous or bony vertebral column in the adult.
In the light of the above statements, choose the correct answer from the options given below.
Text Solution
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Statement I is correct, but statement II is incorrect and can be corrected as
The member of subphylum-Vertebrata possess notochord in embryonic stage. 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. Hemichoradata possess stomochord, a structure similar to notochord
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