Which of the following is an example of an infectious agent (pathogen)?

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A Vitamin C
B Bacteria
C Dust particles
D Red blood cells

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Answer: B. Bacteria

Answer: B
Explanation: Pathogens are disease-causing organisms. Common examples include viruses, bacteria, fungi, protozoa, and parasitic worms.

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Which of the following is an example of an infectious agent (pathogen)?

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