The Punctuated Equilibrium Model of Evolution Suggests That New Species

question 14

Multiple Choice

The punctuated equilibrium model of evolution suggests that new species appear

• A) gradually; as groups become isolated, they slowly evolve through their own individual pathway.
• B) only after older species disappear from the fossil record.
• C) suddenly after long periods of time with little to no change.
• D) gradually after long periods of time with little to no change; as groups become isolated, they slowly evolve through their own individual pathway.
• E) gradually, but over very short periods of time, so that intermediate species are often observed in the fossil record.

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Definitions:

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A mental health disorder characterized by persistently depressed mood or loss of interest in activities, causing significant impairment in daily life.

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A psychoanalytic technique where patients are encouraged to verbalize thoughts as they come to mind, without censorship or restraint.

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A method of psychology and therapy founded by Sigmund Freud that aims to treat mental disorders by investigating the interaction of conscious and unconscious elements in the mind.