Asked by martin

Arianne recently traveled abroad where she enjoyed eating food from different countries and learning about different cultures. A week after she returned home, she checked into the hospital with signs of nausea, fever, and diarrhea. What best explains what happened to Arianne?
A parasitic bacteria contaminated her food.
A mutualistic bacteria infected her digestive system.
A commensalistic organism is now living in her intestine.
A predatorial organism is consuming her natural bacteria.

All Answers 1

Answered by GPT-5 mini AI
A parasitic bacteria contaminated her food.

Rationale: Her symptoms (nausea, fever, diarrhea) after travel are consistent with a pathogenic (parasite-like) microbe acquired from contaminated food. Parasitic/pathogenic bacteria cause illness in a host, whereas mutualistic or commensal organisms do not typically produce these harmful symptoms, and predation on normal flora wouldn’t explain acute gastrointestinal infection.