Evolution and Natural Selection Review

Which of the following would best support the theory of evolution?

• Evidence that shows a change in species over time

• Evidence that shows there has been little to no change in a species over time

• Evidence that shows a decrease in resources but an increase in the number of organisms.

• Evidence that shows how biotic and abiotic factors have changed over time

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Differences in the alleles among the members of a population

• Genetic Variation

• Trait Variation

• Natural Selection

• Heritable

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Traits that are due to genetic differences

• Trait Variation

• Mutation

• Natural Selection

• Heritable

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Which statement best describes adaptation's role in natural selection?

• Adaptations are a result of natural selection.

• Adaptations limit an organism's ability to reproduce and survive, removing those genes from the gene pool.

• Organisms that are more adapted survive longer and reproduce more often, which leads to an increase of those genes in the population

• Adaptations are the only contributing factor to natural selection.

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Which of the following allows for adaptation evolution?

• An increase in organisms with varying traits that allow for survival

• A decrease in resources such as water and space

• A decrease in genetic variation and trait expression

• An increase in competition for natural resources.

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Differences among the physical or behavioral characteristics of a group of organisms

• Natural Selection

• Mutation

• Genetic Variation

• Trait Variation

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Why does natural selection produce changes in populations and not individuals?

• Changes in population only occur from sexual reproduction.

• One individual cannot alter itself to be more “fit.”

• Natural selection is a mechanism of evolution.

• Populations can alter themselves to be more “fit.”

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Which is the most representative of how natural selection occurs?

• Isolation of two populations for many generations leads to the development of a new species.

• Variations in genetic information as well as the expression of that trait

• Individuals changing as a result of environmental changes

• Evolution of a species causes natural selection.

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A change in a DNA sequence

• Mutation

• Heritable

• Trait Variation

• Natural Selection

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Differential survival and reproductive success among a group of organisms due to differences in the inherited traits or characteristics of the organisms

• Mutation

• Trait Variation

• Genetic Variation

• Natural Selection

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