Q. Animals which lack a body cavity between the body wall and gut wall are called acoelomates. Which phylum is acoelomate?
A) Aschelminthes
B) Annelida
C) Mollusca
D) Platyhelminthes
Explanation
Platyhelminthes (flatworms) are triploblastic and acoelomate. Aschelminthes are pseudocoelomate, while Annelida and Mollusca are coelomate.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.