Scientists Often Work with a Model of a System Rather

question 11

True/False

Scientists often work with a model of a system rather than experimenting on the "real thing."

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Definitions:

Epinephrine

Epinephrine, also known as adrenaline, is a hormone and neurotransmitter involved in the body's fight-or-flight response.

Adrenal Glands

Glands located on top of the kidneys that produce a variety of hormones including adrenaline and cortisol.

Bloodstream

The flowing blood within the circulatory system of the body, carrying oxygen, nutrients, and waste materials.

Epinephrine

A hormone and a neurotransmitter also known as adrenaline, which is released in response to stress and works by increasing heart rate, contracting blood vessels, and dilating air passages.