When a Hormone Changes the Frequency or Intensity of the Drive

question 141

Multiple Choice

When a hormone changes the frequency or intensity of the drive that motivates a behavior or changes the ability to perform the behavior, this is considered a(n)

• A)motivational effect.
• B)organizing effect.
• C)hormonal effect.
• D)activating effect.

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Definitions:

Genetic Drift

A mechanism of evolution that leads to random changes in the gene frequencies of a population over time, particularly in small populations.

Hereditary Material

Genetic material, such as DNA or RNA, that is passed from parents to offspring and determines inherited characteristics.

Sexual Selection

Refers to the process of choosing mates based on certain traits, which can influence an individual's ability to reproduce within a population.

Homoplasic Structures

Features in different species that appear similar not due to common ancestry but convergent evolution or evolutionary reversals.