Final answer:
The temperature affects the way cells differentiate in bearded dragons, leading to sex determination.
Step-by-step explanation:
The likely cause of a genetically male bearded dragon developing into a female dragon due to high air temperature is temperature affecting the way cells differentiate. In reptiles, including bearded dragons, the sex of the offspring is determined by the temperature at which the eggs are incubated. Certain temperature ranges during incubation can lead to different sex outcomes. This is known as temperature-dependent sex determination (TSD) and is observed in various reptiles.
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