Q. A sponge harmful to oyster industry is
A) Cliona
B) Euspongia
C) Hyalonema
D) Spongilla
Explanation
Boring sponges, such as Cliona, attach themselves to shells of oysters, clams, branches, etc.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.