What relationship exists between changes in the environment and variations?

Changes in the environment can act only on existing variations in a population.
Changes in the environment can act only on existing variations in a population.

Changes in the environment cannot influence the fitness of an organism.
Changes in the environment cannot influence the fitness of an organism.

Changes in the environment can only cause new variations to appear.
Changes in the environment can only cause new variations to appear.

Changes in the environment cannot change which traits are advantageous.
Changes in the environment cannot change which traits are advantageous.

1 answer

Overall, changes in the environment can influence variations in a population by selecting for certain traits that are better suited to the new conditions. This can lead to changes in the gene pool of a population over time as organisms with advantageous traits are more likely to survive and reproduce. However, changes in the environment do not directly cause genetic mutations or create new variations. Instead, they act on existing genetic diversity within a population.
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