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Use the figure to answer the following question.
Treehoppers (a type of insect) produce honeydew, which ants use for food. Treehoppers have a major predator, the jumping spider. Researchers hypothesized that the ants would protect the treehoppers from the spiders. During a one-year study, researchers found no difference in treehopper populations in any of their control and experimental groups. What could they measure during the second year to gain information about why this might have occurred?
James Fennimore Cooper
An early 19th-century American writer, celebrated for his historical novels of frontier and Native American life, notably the "Leatherstocking Tales."
Western Settlement
The expansion and settlement of Americans into the western territories of the United States, particularly during the 19th century, often involving conflict with indigenous populations.
Free Africans
Refers to African individuals who were not enslaved, particularly during periods of widespread slavery.
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