workshop 8-Vertebrates - 8.What is the major difference...

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Workshop on Vertebrates -1 BIL 160 (Malancha Sarkar) 1.What arguments support Echinoderms as being similar to our vertebrate ancestors? 2.What is notochord? 3.What is the functional significance of a notochord? 4.As a vertebrate you are a Chordate . So where are your pharynx, your tail, and your notochord? 5. Write down four characteristics shared by all vertebrates.
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6.What present day organisms probably resemble these early soft bodied Vertebrates? What characteristics of these organisms are probably similar to those of the early vertebrates? 7.What is the relationship between Urochordate, Cephalochordate, Chordate?
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Unformatted text preview: 8.What is the major difference between agnathostomes and gnathostomes? 9.Why was the evolution of jaws important? 10.What are the two living groups of agnathans? 11.What was one of the most significant changes in early vertebrate evolution? 12.List the major groups of vertebrate animals. 13.What feature characterize the Chondrichthyes, osteichthyes? 14. Why are some Osteichthyes termed as ray finned and others as lobed fin. Could you provide an example for each? 15.Lung fishes :How do they deal with drought? How do you think they might have evolved?...
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