Which of the Following Research Results Would Provide Evidence That

question 98

Multiple Choice

Which of the following research results would provide evidence that aggression is a heritable trait?

• A) Identical twins reared together are more similar in their levels of aggressiveness than identical twins reared apart.
• B) Adopted children are more similar in levels of aggressiveness to their adoptive parents than to their biological parents.
• C) Fraternal twins are more similar in levels of aggressiveness than non-twin siblings.
• D) Identical twins are more similar in levels of aggressiveness than fraternal twins.

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Definitions:

PYY

A hormone, short for Peptide YY, produced in the gut in response to eating and is associated with reducing appetite and inhibiting food intake.

Leptin

A hormone produced by fat cells that is involved in the regulation of appetite and metabolism, often affecting feelings of satiety and hunger.

Stomach Contractions

Involuntary movements of the stomach muscles that mix and propel contents through the gastrointestinal tract.

Hypothalamus

This part of the brain, positioned under the thalamus, serves to regulate the autonomic nervous system and the actions of the pituitary, playing a significant role in the control of body temperature, the sensations of thirst and hunger, and the overall maintenance of the body’s equilibrium.