Question

question 5 (1 point)

an organism of microscopic size, usually a bacteria or virus, that causes disease.

bug

pathogen

illness

none of the above

Explanation:

• A pathogen is defined as an organism (often microscopic like bacteria or viruses) that causes disease.
• A "bug" is a more colloquial term and not the scientific term for such disease - causing organisms.
• "Illness" refers to the state of being sick, not the agent (like bacteria or virus) that causes the illness.

Answer:

B. Pathogen