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Which of the following is not a key aspect of an adaptive radiation?
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24. History of Life on Earth
Adaptive Radiation
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What happens when adaptive radiation occurs?
A
A single species rapidly evolves into multiple new species to fill different ecological niches.
B
A species migrates to a new habitat without undergoing significant evolutionary changes.
C
Multiple species merge into a single species due to genetic similarities.
D
A species becomes extinct due to environmental changes.
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Understand the concept of adaptive radiation: It is an evolutionary process where a single ancestral species rapidly diversifies into a variety of new forms to occupy different ecological niches.
Identify the key characteristics of adaptive radiation: It typically occurs when a species colonizes a new environment with diverse habitats or after a mass extinction event that leaves many niches unoccupied.
Consider examples of adaptive radiation: The classic example is Darwin's finches on the Galápagos Islands, where a single ancestral species evolved into multiple species with different beak shapes and sizes to exploit different food sources.
Analyze the options given in the problem: Determine which option aligns with the definition and characteristics of adaptive radiation.
Conclude that the correct scenario for adaptive radiation is when a single species rapidly evolves into multiple new species to fill different ecological niches, as this matches the process described in evolutionary biology.
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