Which one of the following is a Chordate feature, not shared by the non- chordates?

Question

Which one of the following is a Chordate feature, not shared by the non- chordates? (A) Bilateral symmetry (B) Axiate organization (C) Pharyngeal gill slits (D) Metamerism

Tardigrade Admin · Accepted Answer

In all the chordates, a series of pharyngeal gill slits are found at some stage of their life-history. These are found in the pharyngeal wall of the gut behind the mouth. These are absent in invertebrates.

Q. Which one of the following is a Chordate feature, not shared by the non- chordates?

Bilateral symmetry

Axiate organization

Pharyngeal gill slits

Metamerism

In all the chordates, a series of pharyngeal gill slits are found at some stage of their life-history. These are found in the pharyngeal wall of the gut behind the mouth. These are absent in invertebrates.