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