All of the Following but One Are Xenobiotics That Frequently

question 37

Multiple Choice

All of the following but one are xenobiotics that frequently contaminate our terrestrial environments.Which one does NOT represent a xenobiotic?

• A)polychlorinated biphenyls
• B)polycyclic aromatics
• C)lignin
• D)trichloroethylene
• E)nitroaromatics

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Definitions:

Contrast Medium

A substance used in medical imaging to highlight specific structures or fluids within the body to improve the clarity and diagnostic accuracy of the images.

Evacuants

A medication that promotes emptying of the bowels.

Bowels

Another term for the intestines, which are a part of the digestive system responsible for processing food and waste.

Fluoroscope

A medical imaging device that uses X-rays to create real-time images of the internal structures of the body.