Diatomaceous earth is used for making __________?

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Who discovered the living cell first time?

A. Robert brown B. Robert hooke C. Rudolf virchow D. Antoni van leeuwenhoek...

Breakdown of large molecules into smaller ones utilizing water molecules is_________?

A. Hydration B. Hydrolysis C. Dehydration synthesis D. Electrolysis...

Ozone depletion occurs commonly due to_______________?

A. Carbon dioxide B. Chlorofluorocarbons C. UV rays D. Deforestation...

Yellow cytoplasm in ascidian gives rise to______________?

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Resolution power of a compound microscope is___________?

A. 2.0 ?m B. 2-4 A C. 24 ?m D. 24 A...