Question

Diatoms, radiolaria and siliceous sponges use biogenic silica as a structural material to construct their shells.

• A. True
• B. False

Answer 1

The correct option is A True

Silicon (Si), in the form of silicic acid, is a fundamental nutrient for diatoms, silicoflagellates, radiolaria, and many sponges, all of which polymerize it to build skeletons of biogenic silica (BSi). Because the biological use of Si has relevant ecological effects, including control of marine primary Productivity.