Item IE042007: The size of a population of organisms (deer) can increase when its predators are removed from an area because the deer can live longer and have more offspring that also live longer (text only, no food web diagram).
In 1893, a large area of a national forest was home to mountain lions, coyotes, and bobcats as well as about 3,000 deer.
The deer ate grass, and the mountain lions, coyotes, and bobcats ate deer.
Around 1900, hunters began killing large numbers of mountain lions, coyotes, and bobcats. By 1923, there were 100,000 deer in this population.
Using only the relationships between the plants and animals described above, which of the following statements could explain why the population of deer increased so much?
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