Which limitation arose when ancient Andean cultures cultivated maize at increasingly high altitudes?

💡 Explanation

When maize was cultivated at higher altitudes, lower soil temperatures inhibited critical enzyme activity during germination, since maize is a warm-season crop. Therefore, reduced germination is the outcome, rather than altered protein synthesis, fungal susceptibility, or nutrient leaching, which are affected by different environmental pressures.

• Which environmental benefit resulted from the chinampa system's artificial island construction in pre-Columbian Mesoamerica?
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• Which benefit results from terraced hillside farming during the Inca empire's expansion?
• Which consequence results when rigging pre-19th century square-rigged naval ship experiences cumulative salt spray and rainwater?
• Which outcome resulted from medieval Islamic scholars using quadratic equations to determine land surveying after floods?
• Which functional advantage did Islamic scholars derive by applying geometric algebra for land surveying during the Abbasid Caliphate?