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