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Question

Difficulty: MediumPrimary Purpose of the Whole Text

For decades, archaeologists studying the diet of the ancient Ancestral Puebloan peoples relied primarily on macrobotanical remains—such as charred corn cobs and squash seeds—to reconstruct prehistoric meals. This approach led to the widespread consensus that their diet was highly homogenized and dominated by agricultural staples. However, recent organic residue analysis of pottery shards has challenged this view by revealing traces of wild culinary herbs, animal fats, and non-staple plants that leave no visible archaeological footprint. By identifying these chemical biomarkers, researchers have demonstrated that Ancestral Puebloan culinary practices were far more diverse and complex than corn-centric models suggest. Thus, residue analysis has not merely added details to the existing dietary record; it has fundamentally transformed archaeological understanding of prehistoric foodways.

Which choice best states the primary purpose of the text?

  1. A
    To argue that Ancestral Puebloan communities relied more heavily on cultivated agricultural crops than archaeologists previously believed.
  2. B
    To describe the specific laboratory techniques used to isolate organic residue from ancient pottery shards.
  3. To explain how a new analytical technique has challenged established assumptions about a prehistoric population's diet.Answer
  4. D
    To advocate for replacing field-based archaeological excavations with laboratory-based chemical analysis.

Answer

To explain how a new analytical technique has challenged established assumptions about a prehistoric population's diet.
The passage begins by describing a long-standing archaeological consensus regarding the Ancestral Puebloan diet, which was based on macrobotanical remains. It then introduces organic residue analysis as a new technique that revealed previously undetected diet components, demonstrating that their diet was far more diverse than once believed. The final sentence states that this new method has fundamentally transformed archaeological understanding of prehistoric foodways, which aligns perfectly with the statement that the text explains how a new analytical technique has challenged established assumptions about a prehistoric population's diet.

Step-by-Step Solution

1
Analyze the first half of the passage to identify the initial state or belief described.
The text explains that archaeologists traditionally relied on macrobotanical remains to conclude that the Ancestral Puebloan diet was simple and dominated by agricultural staples.
This establishes the context and the baseline assumption that is later challenged.
2
Analyze the second half of the passage to identify the transition and the new evidence.
The text introduces organic residue analysis, which detected wild herbs and animal fats, demonstrating a much more diverse and complex diet than previously believed.
This shows how the new method directly challenges and corrects the traditional consensus.
3
Synthesize the entire passage to identify the author's primary objective.
The passage as a whole serves to illustrate how the introduction of organic residue analysis (a new technique) has transformed (challenged) the understanding of Ancestral Puebloan diets (established assumptions).
The correct answer must encompass this transition and overall shift in archaeological understanding.

Key Concept

Identifying the primary purpose of a passage requires recognizing how the author structured their argument, particularly how they present a traditional view and then show how new methods or evidence have altered that view.
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Topics

Primary Purpose of the Whole Text

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