Evolution and Natural Selection

What is evolution?

• change over hundreds of years

• change over millions of years

• change over weeks

• change over a few years

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Different sizes, shapes and colors are usually . . .

• adaptations

• variations

• homologous structures

• vestigial structures

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He proposed evolution due to the environment.

• Carolus Linnaeus

• Georges Buffon

• Erasmus Darwin

• Jean-Baptiste Lamarck

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He proposed evolution by natural selection.

• Charles Darwin

• Georges Buffon

• Erasmus Darwin

• Jean-Baptiste Lamarck

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Trace of an organism that existed in the past.

• Fingerprint

• Vestigial Structure

• Fossil

• DNA sequence

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Features allowing organisms to better survive its environment.

• analogous structures

• variations

• adaptations

• vestigial structures

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Selection where humans breed species based on favorable traits.

• Artificial

• Sexual

• Natural

Selection by which the environment determines an organisms traits.

• Artificial

• Sexual

• Natural

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The ability to pass on traits from one generation to the next.

• Adpatability

• Inheritance

• Heritability

• Variability

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Measure of how well an organism can survive and produce offspring.

• Variation

• Adaptation

• Heritability

• Fitness

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