Natural Selection

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

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What role does genetic diversity play in a species' ability to adapt?

Back

Greater genetic diversity allows a species to adapt more easily to changing environments, increasing its chances of survival.

Front

What is genetic drift?

Back

Genetic drift is a mechanism of evolution that refers to random changes in the frequency of alleles in a population, which can lead to a loss of genetic diversity.

Front

How can limited food resources affect a population?

Back

Limited food resources can lead to competition among individuals, resulting in natural selection favoring those with traits that allow them to better exploit available resources.

Front

What is the significance of variations in traits within a population?

Back

Variations in traits provide the raw material for natural selection, allowing some individuals to survive and reproduce better than others.

Front

What is the difference between natural selection and artificial selection?

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Natural selection occurs through environmental pressures, while artificial selection is driven by human choices in breeding.

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How does geographic isolation affect a subspecies?

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Geographic isolation can lead to reduced gene flow between populations, potentially resulting in speciation and unique adaptations.

Front

What is the importance of survival of the fittest in natural selection?

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Survival of the fittest refers to the idea that individuals with advantageous traits are more likely to survive and reproduce, passing those traits to the next generation.

Front

What is a necessary condition for natural selection to occur?

Back

A necessary condition for natural selection is the presence of variation in traits among individuals in a population.

Front

How does environmental change impact species survival?

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Environmental changes can challenge a species' ability to survive, making genetic diversity crucial for adaptation.