All vertebrates are chordates but all chordates are not vertebrates . ...
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. But in cephelochordates, notochord persists throughout life as such and in urochordates, notochord is present only in larval stages and absent in adults. Thus, it can be said that all vertebrates are chordates but all chordates are not vertebrates.
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All vertebrates are chordates but all chordates are not vertebrates . ...
Because protochordates (urochordata+cephalochordata) do not exhibit all vertebrate characters...
All vertebrates are chordates but all chordates are not vertebrates . ...
It's a very simple answer .....
look the animals which have notochord structure are called chordates and those not have the notochord are called non chordates ____________
chordates maybe vertebrates may not be vertebrates......... actually vertebrates mean that chordates in which notochord is converted into vertebral column... it is a modification of notochord........ ___
but some chordates have only notochord in them it is not modified into vertebral column so all vertebrates are chordates but all chordates are not vertebrates (:invertebrates) but they having notochord
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