Evolution and Natural Selection Review

Differences in the alleles among the members of a population

• Genetic Variation

• Trait Variation

• Natural Selection

• Heritable

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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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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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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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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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Heritable

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

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

• A change in a DNA sequence

• Traits that are due to genetic differences and are passed on to the next generation

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Some female peacocks prefer males with large, colorful tales while other female peacocks prefer males with no tail at all. Females are now mating only with the tail they prefer. What type of reproductive barrier is this?

• behavioral isolation

• hybrid sterility

• temporal isolation

• mechanical isolation

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A flash flood carried a raft of Amazon ants away from their original population. There is enough distance between the two groups, that they will never meet in nature again. What type of reproductive barrier is this?

• behavioral isolation
• temporal isolation 
• gametic isolation
• geographic isolation 

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