Studies Have Revealed That When Identical and Fraternal Twins Are

question 43

Multiple Choice

Studies have revealed that when identical and fraternal twins are compared, the identical twins are more similar in their _____________ behaviours.

• A)altruistic
• B)aggressive
• C)apathetic
• D)empathetic

---

Definitions:

Autonomic Nervous System

The part of the nervous system that controls involuntary functions of the body, including heart rate, digestion, and respiratory rate, divided into the sympathetic and parasympathetic systems.

Parasympathetic

Part of the autonomic nervous system that conserves energy by slowing the heart rate and increasing intestinal and gland activity.

Sympathetic

Part of the autonomic nervous system involved in the body's fight or flight response, regulating heart rate, blood flow, and other functions.

Epinephrine

A hormone and neurotransmitter also known as adrenaline; it increases heart rate, constricts blood vessels, and dilates air passages.