Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Only dermis
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Epidermis and dermis both
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Mucous glands
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A Only epidermis Hemichordata is a phylum of marine deuterostome animals. They show characteristics of both Echinoderm and Chordates. They show bilateral symmetry and are triploblastic. Body is unicellular and is composed of epidermis. Body consists of three regions, proboscis, collar and trunk.