Toxicology is the science that studies the harmful or toxic properties of substances. Which term best matches this definition?

Toxicology is the science that studies the harmful or toxic properties of substances. Which term best matches this definition?

• A. Toxicology
• B. Pharmacology
• C. Pathology
• D. Epidemiology

Answer: (A)

This question tests understanding of which field studies harmful or toxic properties of substances. Toxicology is the discipline that focuses on adverse effects of chemicals on living organisms, including how dose, exposure route, duration, and individual factors influence toxicity and risk. That direct focus on harmful effects distinguishes it from the other fields: pharmacology deals with drugs and their therapeutic actions and mechanisms; pathology studies disease processes and tissue changes; epidemiology examines how diseases occur and spread in populations. Therefore, toxicology best fits the definition provided.

This question tests understanding of which field studies harmful or toxic properties of substances. Toxicology is the discipline that focuses on adverse effects of chemicals on living organisms, including how dose, exposure route, duration, and individual factors influence toxicity and risk. That direct focus on harmful effects distinguishes it from the other fields: pharmacology deals with drugs and their therapeutic actions and mechanisms; pathology studies disease processes and tissue changes; epidemiology examines how diseases occur and spread in populations. Therefore, toxicology best fits the definition provided.