Evolution Concepts 1/2

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What species did Darwin study on the Galapagos Islands?

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Darwin studied tortoises and finches on the Galapagos Islands.

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What is the term for when a number of different species arise from one common ancestor?

Back

Adaptive Radiation (aka, Divergent Evolution) is when different species arise from one common ancestor.

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What type of evolution is exemplified by sharks and dolphins having streamlined bodies?

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This is an example of convergent evolution.

Front

What is gradualism in the context of evolution?

Back

Gradualism is the pattern in evolution where changes in species occur gradually over time.

Front

In convergent evolution, why do organisms share physical similarities?

Back

Organisms share physical similarities in convergent evolution because they live in the same environment.

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What is the definition of speciation?

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Speciation is the process by which new species arise from existing species.

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What is coevolution?

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Coevolution is the process where two or more species influence each other's evolution.

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What is the difference between homologous and analogous structures?

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Homologous structures are similar due to shared ancestry, while analogous structures are similar due to convergent evolution.

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What is punctuated equilibrium?

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Punctuated equilibrium is a theory that proposes that species remain stable for long periods, interrupted by brief periods of rapid change.

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What is microevolution?

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Microevolution refers to small-scale evolutionary changes within a species.