Question

DIFFERENCE BETWEEN CHORDATES AND NON-CHORDATES
(AT LEAST FIVE POINTS)

Answer 1

Chordates

• Notochord is present
• Heart is ventral
• post anal tail is present
• Gill slits are present
• Central nervous system is dorsal

Non-chordates

• Notochord is absent
• Heart is dorsal
• post anal tail is absent
• Gill slits are absent
• Central nervous system is ventral

Answer 2

• Pharyngeal gill slits are present at some stage of life in Chordates and it is completely absent in Non-chordates.
• Chordates can be cold or warm-blooded, while Non-chordates are cold-blooded only.
• Nerve cord is single, dorsal, without ganglia in Chordates and in Non-chordates it is double, ventral, and with ganglia.
• The animal has a cord or backbone in their body structure are chordates.
• Contrary, Non-chordates are the animals without backbone or notochord, this the vital difference between chordates and non-chordates is that the.

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