Natural Selection Review

Evolution is change in a population over time.

• True
• False

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What is the basis for all variation among organisms?

• Mutation
• Genetic Drift
• Migration
• Inbreeding

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Whether or not a variation is an adaptation is dependent on the organism's

• Environment
• Genotype
• Phenotype
• Selection

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Individuals with favorable traits survive, reproduce, and pass their traits onto their offspring.  This is called

• Mutation
• Adaptation
• Evolution
• Natural Selection

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Brown mice survive and reproduce in their desert environment better than white mice because owls can see and eat the white mice more easily. In this situation, what is doing the selecting?

• Owl
• Desert Background
• Brown Mice
• White Mice

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Why are advantageous traits more likely to be passed onto offspring?

• Because organisms with those traits are more likely to survive and reproduce.
• Because they come from dominant alleles.
• Because they come from recessive alleles.
• Because the trait is an acquired (learned) phenotype.

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Some lizards have different size legs.  Lizards with longer legs are able to better access food.  Overtime Lizards with short legs became less common.
What is the adaptation?

• Lizards
• Long legs
• Leg size 
• Food

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Some lizards have different size legs.  Lizards with longer legs are able to better access food.  Overtime Lizards with short legs became less common.
What is the struggle to survive?

• Lizards
• Long legs
• Food
• Leg sizes

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Natural selection as the mechanism for evolution was first proposed by what scientist?

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

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Both moths pictured are part of the same species. Which moth has higher fitness in this environment and why?

• The light colored moth because it stands out

• The light colored moth because it is bigger

• The dark colored moth because it blends in

• The dark colored moth because they are more intelligent

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