Answer:
Toxicology is a scientific discipline, overlapping with biology, chemistry, pharmacology, and medicine, that involves the study of the adverse effects of chemical substances on living organisms and the practice of diagnosing and treating exposures to toxins and toxicants.
Explanation:
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C. Being polite in your emails and discussions.
A. Lungs because thats your respiratory system
<em>The Endocrine System</em> controls Growth, metabolism, and regualates reproduction thorough hormones.