Answer:
Gene
Explanation:
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It may be due to the fact that there was an event that eliminated many of the individuals in species.
The term genetic variation refers to the occurence of organisms in a specie that are composed of different genotypes.
If the genetic variation in a population at the yellowstone park is decreased it may be due to the fact that there was an event that eliminated many of the individuals in species.
Learn more about genetic variation:brainly.com/question/848479
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