A-LevelBiologyInfectious diseases9700/12 · Oct/Nov 2023 · Q361 Mark

Which statement correctly describes infectious diseases?

AThey are diseases caused by environmental factors that are not passed from one person to another.

BThey are diseases caused by a fault in the DNA that can be passed from a parent to their offspring.

CThey are diseases caused by a lack of a nutrient in the diet, such as a vitamin or mineral.

DThey are diseases caused by a pathogen such as a bacterium, fungus, protoctist or virus.

✓ Correct answer

D: They are diseases caused by a pathogen such as a bacterium, fungus, protoctist or virus.

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Topic: Infectious diseases, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2023 Paper 1 Variant 2, question 36.

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