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Lecture 28 (5-1) - Human Biocultural Evolution Population...

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Human Biocultural Evolution Population Genetics The Adaptive Significance of Human Variation The Continuing Impact of Infectious Disease Intelligence Genetic and environmental factors contribute to intelligence. Many psychologists say IQ scores measure life experience. Innate differences in abilities reflect variation within populations, not differences between groups. There is no convincing evidence that populations vary in regard to intelligence. Human Biocultural Evolution Humans live in cultural environments that are continually modified by their activities. Evolutionary processes can be understood only within this cultural context. Adaptive Significance of Human Variation Human variation is the result of adaptations to environmental conditions. Physiological response to the environment operates at two levels: 1. Long-term evolutionary changes characterize all individuals within a population or species.
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