Question

explain giving scientific reasons: all chordates are not vertebates​

Answer 1

Answer:

Explanation:

The members of sub-phylum - Vertebrata possess notochord during the embryonic stage. ... Thus, the absence of notochord in adult vertebrates suggest that all vertebrates are chordates but all chordates are not vertebrates. Answer: ... Due to this all chordates do not get classified in the same group

Answer 2

1. All chordates possess notochord in some period of development .

2 . All vertebrates also have notochord during their embryonic life which is replaced by vertebral column.

3. Therefore all vertebrates are chordates .

4. But some chordates like urochordata and cephalochordata do not possess vertebral column and they are not not vertebrates

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