Soru

Passage A
Paleopathological analysis of human skeletal remains provides an invaluable empirical window into the health dynamics of past civilizations. When evaluating the biological consequences of major socioeconomic shifts—such as the transition from nomadic foraging to sedentary agriculture—researchers rely on macroscopic bone modifications as direct proxies for morbidity. Two prominent skeletal stress markers, porotic hyperostosis and periosteal new bone formation, are particularly revealing. Porotic hyperostosis, characterized by porous cranial lesions resulting from marrow expansion, reflects chronic nutritional stress, specifically acquired iron-deficiency anemia or hemolytic disorders exacerbated by crowded, unhygienic conditions. Simultaneously, periostitis—a non-specific inflammatory reaction of the bone's outer connective tissue sheath—indicates sustained exposure to infectious bacterial pathogens.

In numerous archaeological samples, the frequency of both lesions surges dramatically in strata corresponding to early village life and agricultural intensification. The causal mechanism is straightforward: high population density, contaminated water sources, sedentary refuse accumulation, and monoculture grain-heavy diets created an epidemiological landscape rife with persistent pathogens and chronic malnutrition. Consequently, an elevated prevalence of skeletal lesions in a burial assemblage serves as unambiguous evidence of diminished biological fitness and deteriorating systemic health in that population. By tallying these skeletal indicators, bioarchaeologists can reliably map the historical contours of physical deprivation and epidemic disease.

Passage B
The conventional interpretation of skeletal lesions as direct, linear tallies of population ill-health rests on a fundamental epidemiological fallacy known as the osteological paradox. Skeletal assemblages derived from archaeological excavations do not represent living, representative cross-sections of ancient communities; rather, they are mortality samples consisting solely of individuals who died at particular ages. Inferring the physiological well-being of a living community from dead individuals introduces profound distortions driven by selective mortality and hidden heterogeneity in frailty.

Within any given population, individuals vary widely in their baseline immunological competence and susceptibility to disease. Crucially, macroscopic bone remodeling requires considerable physiological duration—often weeks or months—to manifest. When a severe pathogen sweeps through a community, the frailest individuals (those with the weakest immune responses) frequently succumb immediately, leaving no macroscopic trace on their bones because death preceded bone remodeling. Conversely, individuals with robust immune defenses are capable of surviving the acute phase of an infection, thereby allowing the disease to become chronic and ultimately produce visible periosteal lesions.

Thus, counterintuitively, a skeletal sample displaying a high frequency of inflammatory lesions may not indicate an exceptionally unhealthy, disease-ravaged population; instead, it may reflect a population with high survivorship in which individuals possessed sufficient biological resilience to withstand acute lethality. Interpreting bone lesions solely as indicators of morbidity without modeling demographic mortality risks systematically mistakes physiological resilience for widespread biological failure.

Based on the passages, which of the following best describes how the author of Passage B would evaluate the author of Passage A's conclusion that high rates of skeletal lesions demonstrate diminished biological fitness in early agricultural populations?