Mechanisms of Evolution

What word describes the process of having the advantageous traits that helps an organism survive  and reproduce?

• natural selection
• adaptation
• mutation
• genetic engineering

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Which organisms are most likely to survive?

• the best adapted
• the fastest
• the strongest
• the most domesticated (tamed)

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Any inherited trait that gives an organism an advantage in its environment is called ___.

• a mutation
• an adaptation
• evolution
• natural selection

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Which of the following means "genetic change over time"

• natural selection
• speciation
• evolution
• fitness

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Do organisms "decide" to evolve and change?

• Yes, they know they need to change to survive 
• No, they change because of natural selection

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

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

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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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What is the advantage of having different shaped beaks?

• To look different from other species.
• To be able to eat the food readily available in the environment.
• To protect itself against predators.
• To protect itself against prey.

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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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