Twin Studies Help Estimate How Much of a Trait or Behavior

question 41

Multiple Choice

Twin studies help estimate how much of a trait or behavior is attributable to ______.

• A) genes
• B) hormones
• C) siblings
• D) a controlled environment

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Definitions:

Bicarbonate

An alkaline, bicarbonate ion (HCO3-) that acts as a buffer to maintain the pH balance in bodily fluids, particularly blood.

Intravascular Space

The inside area of blood vessels through which blood circulates within the body.

Coma

A state of deep unconsciousness in which a person cannot be awakened, fails to respond normally to pain or light, and lacks a normal wake-sleep cycle.

Antidiuretic Hormone

A hormone that helps the kidneys manage the amount of water in the body by influencing the absorption of water and the production of urine.