Natural Selection, Adaptation and Variation

Mutations are important because they bring about

• death of the organism in which they develop
• genetic variation needed for a population to evolve
• benefits for the individual, not for the population
• Hardey-Weinberg equilibrium within a population

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What is the term for a feature that allows an organism to survive better in its environemtn?

• variation

• adaptation

• homologous structure

• vestigial structure

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To adjust to a changing environment

• Mutation
• Adapt

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The gradual change in species over time is...

• Evolution
• Nucleotide 
• Adaptation
• Natural Selection

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Surviving and reproducing show that an organism

• is adapting
• is not adapting
• is forming fossils
• is not reproducing

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Another word for adapt is ____________.

• change
• create

Which term refers to the process by which individuals that are better suited to the environment survive and reproduce therefore passing down their genes to their offspring? 

• Evolution 
• Variation 
• Adaptation
• Natural 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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Why are advantageous traits more likely to be passed onto offspring?

• Because they 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 phenotype.

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The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?

• Dark moth
• Light moth
• Both will be equally successful
• Neither will be successful

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