Question

Radiolarians are ____________.

• A. Without shells
• B. With calcareous shells
• C. With siliceous shells
• D. Protists with extremely thin cell walls

Answer 1

The correct option is C With siliceous shells

Radiolarians are protozoa of diametal $0.1-0.2mm$ that produce intricate mineral skeletons and mineral

skeleton is made of silica. The skeleton remains are found in the ocean floor as siliceous ooze.