What is the importance of diatoms?

  • A
    They are primary producers in oceans.
  • B
    They are used in filtration of oils and syrups.
  • C
    Their cell walls are used in polishing and toothpaste.
  • D
    All of the above.

Explore More

Similar Questions

Which of the following is not placed correctly in the respective sub-class?

Which protist is known as the connecting link between plants and animals?

In which form is the kingdom $Protista$ not observed?

In $Paramecium$,the nucleus is characterized by:

Which of the following organisms exhibits characteristics of both plants and animals?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo