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Did urbanization have a geographical pattern?
Lactose Tolerance Allele
A variant of the gene that allows adults to digest lactose, a sugar found in milk, indicating an adaptation to dairy consumption.
High-Elevation Adaptations
The physical or physiological changes that enable organisms to survive and reproduce at high altitudes.
Positive Selection
A process by which beneficial genetic variations that increase fitness are selected for and become more common in a population.
Avian Influenza
A viral infection spread from bird to bird, often highly contagious and potentially deadly, also known as bird flu.
Q2: What was the Holy Alliance?<br>A)a religious agreement
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Q23: Under Nikita Khrushchev,Soviet foreign policy in the
Q24: The murders of the "Night of the
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Q27: What was the "Concert of Europe"?<br>A)a concert