IGCSE O Level Biology Exam Prep MCQs – Mock Test 188

Mineral Salts MCQ with Answers PDF Download – Test 188

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Mineral Salts MCQ – Mock Test 188 PDF Download

MCQ 936: Ability to withstand fluctuations in salt concentration is more in:

fresh water organisms
sea water organisms
brackish water organisms
muddy water organisms

MCQ 937: First use of pure microbiological process in an industrial procedure was made by:

Alexander Fleming
Louis Pasteur
Charles Darwin
Chaim Weizmann

MCQ 938: Chronic Obstructive lung disease occurs because of:

Chronic bronchitis only
Emphysema only
Asthma
Chronic bronchitis and Emphysema

MCQ 939: Unsaturated fatty acid chains bend at places of:

carbon molecules
hydrogen molecules
oxygen molecules
nitrogen molecules

MCQ 940: Tadpole shaped viruses are largely:

tobacco mosaic virus
bacteriophages
influenza virus
may cause death

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