Choose the correct option where both organisms do NOT secrete any CaCO\(_3\) (calcite or aragonite).
Show Hint
- Foraminifera and Coccolithophore
- Diatom and Radiolaria
- Diatoms and Corals
- Foraminifera and Radiolaria
The Correct Option is B
Solution and Explanation
Coccolithophore: These organisms also secrete calcium carbonate (CaCO\(_3\)).
Diatoms: Diatoms do not secrete calcium carbonate. Instead, they secrete silica (SiO\(_2\)).
Radiolaria: Radiolaria do not secrete calcium carbonate either; they secrete silica.
Thus, the correct answer is (B) Diatom and Radiolaria, as neither of these organisms secrete CaCO\(_3\).
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