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Give three major differences between chordates and non-chordates and draw a sketch of a chordate body showing those features.

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Detailed Solution

S.No.	Chordates	Non-chordates
i)	Notochord is present	Notochord is absent
ii)	Nerve cord is dorsal and single	Nerve cord is ventral and double
iii)	Heart is ventral	Heart is dorsal
iv)	Post anal tail is present	Tail is absent

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