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

 

   
   

 

 

 

 

 

 

 

 

 

Answers (1)

Chordates

Non-Chordates

They have a notochord

Their tail is present at some stage in life

Their heart is ventral

Their CNS is dorsal

 

Gill slits are present in the pharynx

They do not have a notochord

Their tail is entirely absent

Their heart is dorsal

CNS is central, solid, and double

Gill slits are absent

 The sketch of a chordate showing features is below:

 

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