Question

A public health official investigates a cholera outbreak caused by Vibrio cholerae bacteria in contaminated water. The investigation shows how pathogenic bacteria can cause serious disease when sanitation systems fail. What does this demonstrate about prokaryotic health risks?
Question 6 options:

Some prokaryotic organisms can cause serious diseases when they contaminate water or food supplies

Modern sanitation has completely eliminated bacterial diseases from human populations

All bacteria in water are harmless because aquatic environments naturally purify themselves

Pathogenic bacteria only cause minor illnesses that resolve without treatment

Answer 1

Some prokaryotic organisms can cause serious diseases when they contaminate water or food supplies.

(Vibrio cholerae is a prokaryotic bacterium that can cause severe, sometimes fatal, disease when sanitation fails and water/food become contaminated.)