The Study of the Amount of a Substance Human Beings

question 11

Multiple Choice

The study of the amount of a substance human beings can absorb through inhalation,ingestion,or skin absorption is called:

• A) exposure assessment.
• B) contingent valuation.
• C) epidemiological study.
• D) hazard characterization.

---

Definitions:

Oxygen

A chemical element essential for respiration in most living organisms and used in various industrial applications; it is the most abundant element in the Earth's crust.

Maternal Serum Screen

A blood test performed on pregnant women to evaluate the risk of certain birth defects or chromosomal abnormalities in the fetus.

Blood

A vital liquid in humans and animals that delivers necessary substances such as nutrients and oxygen to cells, and transports metabolic waste products away.

Mother's Blood

The blood circulating in a pregnant woman that provides nutrients and oxygen to the developing fetus.