Question

What are chordates ? Give their diagnostic features

Answer 1

These characteristics are only present during embryonic development in some chordates. The notochord provides skeletal support, gives the phylum its name, and develops into the vertebral column in vertebrates. The dorsal hollow nerve cord develops into the central nervous system: the brain and spine.

Answer 2

$\huge\textbf{Answer}$


» Cordates

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 - Cordates

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.