O-LevelBiologyEcology & Environment5090/12 · Oct/Nov 2022 · Q281 Mark

Bacteria, fungi and viruses are often grouped together as microorganisms. Which statement about microorganisms is correct?

AAll types of microorganism are used to produce antibiotics.

BBacteria and viruses can only be found inside living cells.

CDecomposition is brought about by bacteria and fungi only.

DAll microorganisms contain DNA but not in a nucleus.

✓ Correct answer

C: Decomposition is brought about by bacteria and fungi only.

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Topic: Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2022 Paper 1 Variant 2, question 28.

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