According to the Text, We Can Be 100 Percent Certain

question 49

Multiple Choice

According to the text, we can be 100 percent certain that all of our ancestors have done which of the following?

• A) had successful careers
• B) received adequate education
• C) had children
• D) lived to old age

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Definitions:

Emotional Arousal

The process of becoming mentally and physically activated with emotions, which can be triggered by thoughts, memories, or external events.

Gamma-aminobutyric Acid

A neurotransmitter in the brain that plays a key role in reducing neuronal excitability throughout the nervous system.

Endocrine System

A network of glands in the body that secrete hormones directly into the circulatory system to regulate the body's growth, metabolism, and homeostasis.

Hormones

Chemical messengers produced by glands in the endocrine system, which regulate various functions in the body, including growth, metabolism, and mood.