Which of the following statements are correct regarding chordates?

Heart, if present, is on the dorsal side.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Pharyngeal gill-slits or lungs are present for respiration.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Pharyngeal gill-slits are absent.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

A hollow nerve cord is present on the dorsal side.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct options are
B Pharyngeal gill-slits or lungs are present for respiration.
D A hollow nerve cord is present on the dorsal side.
Depending upon presence or absence of the notochord, the animal kingdom has been divided into two groups- Non-chordates and Chordates. The defining characteristics of a chordate are:
1. The presence of notochord
2. Pharyngeal gill-slits or lungs present for respiration.
3. A hollow nerve cord present on dorsal side of body.
4. Heart that is present on the ventral side of body.

Suggest Corrections

Similar questions

Q. Phylum Chordata is characterised by the presence of
A. notochord
B. dorsal hollow nerve cord
C. paired pharyngeal gill slits

Q. Pharyngeal gill slits are dorsal in

Name the phylum in which dorsal nerve tube, notochord and pharyngeal gill clefts are present.

Name the phylum in which pharyngeal gill slits are present but notochord is absent.

Animals with a double ventral notochord, dorsal nerve cord, pharyngeal gill slits and a post anal tail are placed in the highly evolved phylum called_____.

Join BYJU'S Learning Program