Final answer:
Toxicology is the study of the adverse effects of agents on organisms and the environment, not how diseases affect health. It involves understanding and managing these impacts to protect human and ecosystem health.
Step-by-step explanation:
The statement that toxicology is the study of how diseases affect organisms' health is false. Toxicology is accurately described as the study of the adverse effects of chemical, physical, or biological agents on living organisms and the ecosystem.
This includes not only understanding the harmful impacts but also the prevention and amelioration of these effects. Environmental toxicology specifically looks into health effects linked with exposure to toxic chemicals within various environments and the management of these toxins.
It is important to recognize that even substances required for health can be toxic at higher doses, such as selenium. This concept is illustrated through a dose-response curve. Furthermore, environmental toxicology delves into the far-reaching implications of pollutants released into the biosphere and their impact on human health and ecosystems, including the rise of antibiotic resistance and other health challenges.