Give three major differences between chordates …
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Meghna Thapar 3 years, 11 months ago
The three major differences between chordates and non- chordates are:
i. Notochord: is Present at some stage or replaced by a backbone made of ring like vertebrae in chordates while in non-chordates notochord or backbone is absent.
ii. Nerve cord: Single, dorsal, without ganglia in chordates, and Double, ventral, usually bearing ganglia in non-chordates
iii. Pharyngeal gill slits: are present in chordates and absent in non-chordates.
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