Question

justify the statement::all veretebrates are chordates but all chordate are not vertebrates

Answer 1

The characteristic features of the phylum Chordata include the presence of a notochord and paired pharyngeal gill slits. In sub-phylum Vertebrata, the notochord present in embryos gets replaced by a cartilaginous or bony vertebral column in adults.

Answer 2

All vertebrates are chordates but all chordates are not vertebrates justify the statement

Answer

Members of subphylum vertebrata possess notochord during the embryonIf period .thus the notochord is being replaced by a bony vertebral coloum in adults