Bunuel
The ancient cliff dwellings of the ancient Puebloans in the southwestern United States may have been constructed much more quickly than within the 150-year span previously supposed by scientists, significantly altering researchers' understanding of societal development in Native American cultures. Pueblo oral histories hold that during the mid-13th century, a tribal leader named White Shell Woman organized a coordinated movement of communities into cliff dwellings for protection and resource management. But archaeologists had been unable to scientifically confirm this rapid transition, in part because of limitations with traditional pottery dating methods.
Recently, researchers, knowing that tree rings form annual growth patterns, applied dendrochronology to wooden support beams collected from various cliff dwelling sites. The technique measures both early and late wood formation within each ring, providing precise annual markers of when trees were harvested for construction. Dates from the samples that best reflect cutting time—those with bark still present—ranged from 1248 to 1265 CE, suggesting there was intensive cliff dwelling construction during that period. Because, the researchers argue, these structures served as centers for food storage and resource distribution, the rapid construction likely indicates a significant shift in community organization.
The events described by Pueblo oral histories agree with these new dates, and the cliff dwellings provide tangible archaeological evidence that this sociopolitical shift happened within a single generation of Ancestral Puebloans. This compressed timeline suggests that environmental pressures and increased regional conflict accelerated the need for protective structures far more quickly than previously thought.
1. Which of the following can be most reasonably inferred from the passage regarding the construction of cliff dwellings by the Ancestral Puebloans?
A. The presence of bark on the wooden beams suggests that the trees used for construction were harvested over several decades.
B. The alignment between dendrochronology data and oral histories suggests that the transition to cliff dwellings was driven primarily by religious motivations.
C. The cliff dwellings’ role in food storage and resource distribution implies that the Ancestral Puebloans anticipated long-term occupation of these structures.
D. The rapid construction of cliff dwellings supports the idea that external pressures necessitated immediate changes to settlement patterns.
E. The lack of earlier construction dates implies that tree ring data may underestimate the true age of some cliff dwelling sites.
2. Which of the following best summarizes the central idea of the passage?
A. Scientific evidence suggests that a series of structures were constructed rapidly over a short period of time.
B. Conflicting accounts between earlier scientific data and local traditions have led researchers to new scientific methods.
C. New scientific methods have provided evidence that supports historical accounts of significant social and structural changes occurring rapidly in a particular society.
D. Researchers have found that centralized planning efforts were responsible for the development of certain ancient structures.
E. Archaeological studies indicate that social and environmental changes had great influence on the construction patterns of several ancient communities.
3. Which of the following can most reasonably be inferred from the passage?
A. The wooden beams used in cliff dwelling construction were cut and used immediately after being harvested.
B. The presence of bark on the beams indicates that the trees were harvested during the late growth season.
C. The analysis of early and late wood formation helps researchers determine the year the trees were cut.
D. Researchers were able to determine the specific locations where the trees used in the cliff dwellings were felled.
E. Only the outermost rings of the wooden beams provide accurate information about the year the trees were harvested.
Official Solution:1. Which of the following can be most reasonably inferred from the passage regarding the construction of cliff dwellings by the Ancestral Puebloans?A. The presence of bark on the wooden beams suggests that the trees used for construction were harvested over several decades.
B. The alignment between dendrochronology data and oral histories suggests that the transition to cliff dwellings was driven primarily by religious motivations.
C. The cliff dwellings’ role in food storage and resource distribution implies that the Ancestral Puebloans anticipated long-term occupation of these structures.
D. The rapid construction of cliff dwellings supports the idea that external pressures necessitated immediate changes to settlement patterns.
E. The lack of earlier construction dates implies that tree ring data may underestimate the true age of some cliff dwelling sites.
A) Incorrect: The passage notes that beams with bark present reflect precise cutting times between 1248 and 1265 CE, suggesting a concentrated period of harvesting rather than one spread over several decades.
B) Incorrect: Although the passage mentions the alignment between oral histories and dendrochronology data, the construction of cliff dwellings is attributed to protective and resource management needs, not religious motivations.
C) Incorrect: The passage highlights the dwellings' role in food storage and resource distribution, but this is presented as part of an immediate response to environmental and social pressures, not long-term occupation planning.
D) Correct: The passage emphasizes that the rapid construction of cliff dwellings reflects a response to external pressures, such as environmental challenges and regional conflict, necessitating swift changes in settlement patterns.
E) Incorrect: There is no suggestion in the passage that dendrochronology underestimates the age of cliff dwellings. Instead, the method is described as providing accurate, precise dating for when the trees were felled. 2. Which of the following best summarizes the central idea of the passage? A. Scientific evidence suggests that a series of structures were constructed rapidly over a short period of time.
B. Conflicting accounts between earlier scientific data and local traditions have led researchers to new scientific methods.
C. New scientific methods have provided evidence that supports historical accounts of significant social and structural changes occurring rapidly in a particular society.
D. Researchers have found that centralized planning efforts were responsible for the development of certain ancient structures.
E. Archaeological studies indicate that social and environmental changes had great influence on the construction patterns of several ancient communities.
A) Incorrect: While the passage discusses rapid construction, the central focus is on how new scientific methods align with oral histories to reshape understanding of societal change, not just the speed of construction.
B) Incorrect: The passage does not highlight conflicting accounts between earlier data and traditions. Instead, it emphasizes how scientific findings confirm, rather than contradict, Pueblo oral histories.
C) Correct: The passage’s primary focus is on how dendrochronology supports oral histories, revealing that significant social and structural changes occurred rapidly within a short timeframe.
D) Incorrect: There is no mention of centralized planning. The construction of cliff dwellings is attributed to external pressures, such as environmental challenges and regional conflict, rather than deliberate, long-term planning.
E) Incorrect: Although social and environmental factors are discussed, the emphasis is on their role in prompting rapid construction, not on broader patterns across several communities or extended periods. 3. Which of the following can most reasonably be inferred from the passage?A. The wooden beams used in cliff dwelling construction were cut and used immediately after being harvested.
B. The presence of bark on the beams indicates that the trees were harvested during the late growth season.
C. The analysis of early and late wood formation helps researchers determine the year the trees were cut.
D. Researchers were able to determine the specific locations where the trees used in the cliff dwellings were felled.
E. Only the outermost rings of the wooden beams provide accurate information about the year the trees were harvested.
A) Incorrect: The passage does not specify that beams were used immediately after being cut, only that the cutting date can be inferred from the presence of bark.
B) Incorrect: The passage discusses early and late wood but does not explicitly link bark to late growth season harvesting.
C) Correct: The passage mentions that dendrochronology analyzes both early and late wood formation within each ring to provide precise annual markers, allowing researchers to determine when trees were cut.
D) Incorrect: The passage states that beams were collected from various sites, but it does not indicate that researchers identified the specific locations where the trees were originally harvested.
E) Incorrect: The passage highlights the importance of the outermost rings and bark in dating, but it does not suggest that only the outermost rings provide useful data. The entire ring structure contributes to accurate dating.