Question

chapter 18 & 21 test
a disease causing agent is called a:
○ toxin
○ pathogen
○ prions
○ vaccines

Explanation:

• A toxin is a harmful substance produced by organisms, not the broad term for disease-causing agents.
• Pathogen is the general term for any organism or agent that causes disease.
• Prions are a specific type of infectious misfolded protein, a subset of pathogens, not the general category.
• Vaccines are substances used to prevent disease, not cause it.

Answer:

B. pathogen