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A biologist studied a population of squirrels for 15 years. During that time, the population was never fewerthan 30 squirrels and never more than 45. Her data showed that over half of the squirrels born did not surviveto reproduce, because of competition for food and predation. In a single generation, 90% of the squirrels thatwere born lived to reproduce, and the population increased to 80. Which inference(s) about this populationmight be true?A) The amount of available food may have increased.B) The number of predators may have decreased.C) The squirrels of subsequent generations should show greater levels of genetic variation than previousgenerations, because squirrels that would not have survived in the past will now survive.D) A and B onlyE) A, B, and C

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