Biology

Comparison between vertebrates and invertebrates

Vertebrates	Invertebrates
1. Notochord is present in the embryo and vertebral column in the adult	Notochord and vertebral column are absent in embryo and adult
2. Gill slits are present	Absent
3. Nerve cord is single, hollow and non-ganglionated	Nerve cord is double, solid and ganglionated
4. Cranium is present	Absent
5. Post-anal tail is present	Absent
6. Two pairs of appendages for locomotion	Many pairs when present
7. Heart is ventral to the alimentary canal	Heart is dorsal to the alimentary canal
8. Blood flows forward ventrally and backward dorsally	Blood flows forward dorsally and backward ventrally
9. Haemoglobin is present in RBC	Haemoglobin if present is dissolved in plasma
10. Endoskeleton is present	Absent

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Biology