Q. Cnidarias are divided into the following classes
A) Hydrozoa, Desmospongia and Scyphozoa
B) Actinozoa, Scyphozoa and Anthozoa
C) Scyphozoa, Anthozoa and Hydrozoa
D) None of the above
Explanation
Phylum-Coelenterata or Cnidaria are divided into class-Scyphozoa, Anthozoa and Hydrozoa. Actinozoa is another name for class-Anthozoa. Class-Desmospongia belongs to phylum-Porifera
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.