What do scientists believe is the determining factor that causes skin color variations in groups of humans around the world? a. genetics β two people with the same skin color are more likely to be genetically related, even if they come from different parts of the world b. diet c. ultraviolet radiation exposure in a society over a long period of time d. vitamin deficiencies
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Tension between the british. and boers was caused primarily by what things?
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What explains the increase in life expectancy in botswana? a. the increased availability of jobs and an improved economy b. access to antiretroviral drugs, hiv/aids education, and widespread hiv/aids testing c. a series of military takeovers that stabilized the political system and led to education reform and increased literacy rates d. a recent military coup that led to an improved healthcare system select the best answer from the choices provided.
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What do scientists believe is the determining factor that causes skin color variations in groups of...
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