Organisms with good traits survive and pass on those traits. Those with bad traits do not.

• Natural selection

• Isolation

• Evolution

• Mutation

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All members of a population dying out.

• Extinction

• Adaptation

• Natural selection

• Evolution

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A physical trait or behavior that helps an organism survive and reproduce in its environment.

• adaptation

• mutation

• evolution

• natural selection

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Natural selection can also be referred to as:

• Survival of the weakest
• Survival
• Survival of the fittest
• Artificial selection

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The differences among a species, like different bird beaks, are called

• genes.
• variations.
• traits.
• theories.

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Preserved remains of ancient organisms are called

• Extinctions

• Fossils

• Mutations

• Variations

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What is the study of organisms at the early stages of development?

• DNA studies
• embryology 
• extinction
• fossil record

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When the DNA of an organism is altered it is referred to as…

• Mutation
• Gene Flow
• Genetic Drift
• Sexual Selection

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 A hurricane wipes out half the population of blue jays in Cape Hatteras, North Carolina.

• Natural Selection
• Mutation
• Genetic Drift
• Gene Flow

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A hawk captures a black mouse in a desert, and leaves a tan mouse behind

• Natural Selection
• Mutation
• Genetic Drift
• Gene Flow

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