5) Every vertebrate is a chordate but not every chordate is a vertebrate. Compare the three...

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Biology

5) Every vertebrate is a chordate but not every chordate is avertebrate. Compare the three groups we discussed in thenon-vertebrate chordate lecture (Hemichordata,cephalochordate, urochordata) and explain the differencesbetween the following in one or two paragraphs:
i) between the groups
ii) between those phyla and the vertebrates.
iii) describe the relationship of the hemichordates to otherdeuterostomes.
iv) What physical feature found in all of these groups is anadvantage that has led to â€œpre-adaptednessâ€ in the chordates? Whatdoes that physical feature allow that creates this opportunity?

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3.9 Ratings (641 Votes)

Yes Every vertebrate is a chordate but not every chordate is a vertebrate i In urochordates the dorsal tubular nerve cord is present in the larval form and degenerates in the adults in the form of small ganglion In cephalochordates notochord and nerve cord extend the entire length of body and is present throughout life unlike urochordates Hemichordates on the other hand completely lack notochord and true dorsal nerve cordThis is what makes them different from theothertwo groupsHemichordates and See Answer

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