Consider these two populations, which exhibit variation in population size over time. In which population is the fluctuation most likely due to environmental variation, and in which population is fluctuation most likely due to density dependence? Explain your answer.

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Consider these two populations, which exhibit variation in population size over time. In which population is the fluctuation most likely due to environmental variation, and in which population is fluctuation most likely due to density dependence? Explain your answer.

Consider These Two Populations, Which Exhibit Variation in Population Size