Which Statement Best Explains Why the Hawaiian Silverswords Underwent an Adaptive

question 153

Multiple Choice

Which statement best explains why the Hawaiian silverswords underwent an adaptive radiation and the mainland tarweeds did not?

• A) The ancestors of the silverswords had more ecological opportunities.
• B) There were fewer trees in the areas in which the ancestors of the tarweeds settled.
• C) Silverswords had a more behaviorally complex mating system, so there were more opportunities for the evolution of prezygotic reproductive isolation.
• D) Stabilizing selection prevented the evolution of reproductive isolation in tarweeds.
• E) Tarweeds exploited the "tree" way of life.

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Definitions:

Medical Model

A theory in which psychological disorders are viewed and treated as biologically based illnesses.

Disease

A condition impacting organisms, often characterized by specific signs and symptoms, and not resulting directly from physical injury.

Psychological Disorder

A pattern of behavioral or psychological symptoms that impact multiple areas of life, causing distress to the individual.

Medical Model

An approach to illness and patient care that relies on the identification of a disease through symptoms, leading to a medical diagnosis and treatment primarily through medication or surgery.