Question

Give the point of difference between chordates and non-chordates?

Answer 1

» Chordates

Notochord is present in them.

Heart is ventral in them.

Tail is present in them (post anal)

Central nervous system is dorsal and hollow.

Respiration takes place by gills slits.

» Non - Chordates

Notochord is absent in them.

Heart is present in dorsal side.

Tail is absent in them. (post anal).

Central nervous system is ventral and solid.

Gills slits are absent in them.