Natural Selection

Genetic diversity in a species makes long term survival of some members

• impossible

• improvable

• more likely

• less likely

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Survival of the Fittest and Evolution were proposed by what scientist?

• Charles Darwin
• Albert Einstein
• Steven Hawking
• Isaac Newton

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Behavioral changes of individuals of a species that allow for better survival. (Acquired traits)

• Variation
• Adaptation
• Behavior
• Environment

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When every organism of a species has died.

• Evolution
• Natural Selection
• Extinction
• Artificial Selection

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Where the better adapted organisms survive to pass traits along to offspring.

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

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The theory of evolution by natural selection means that what is changing over time?

• The inherited traits of a population.
• The acquired traits of a population.
• Hair color and eye color
• Attractive features.

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Mutations are a change in what?

• DNA
• tRNA
• genotype
• phenotype

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A slight difference in an inherited trait between individual members of the same species.

• variations
• adapatations
• homologous structures
• analogous structures

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A grizzly bear survives because he is well-adapted to his environment. When he reproduces he passes on those traits to his offspring. this process is called

• Natural Selection

• Selective Breeding

• Random mutations

• Variations in a species

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Where are hereditary traits stored in all organisms?

• In the blood

• In the brain

• In the DNA

• In the heart

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