Explain this. : ) variation in a trait is a required condition for natural selection to act on a population for that trait. assuming a population of organisms only started with only one form of a trait, what are two ways variation in the trait could be introduced into the population? explain your answer.,

1. Introduction of a different environmental pressure, like an invasive species or a prolonged natural disaster.
2. Random mutation, where a gene or set of genes in an individual organism is randomly different from the normal type of that gene in the larger population. This individual may gain an advantage from this mutation and its offspring will inherit the advantageous trait.

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