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Human variability, or human variation, is the range of possible values for any characteristic, physical or mental, of human beings. Frequently debated areas of variability include cognitive ability , personality , physical appearance ( body shape , skin color , etc.) and immunology .
Contemporary biocultural anthropologists view culture as having several key roles in human biological variation: Culture is a major human adaptation, permitting individuals and populations to adapt to widely varying local ecologies. Characteristic human biological or biobehavioral features, such as a large frontal cortex and intensive parenting ...
Adaptation affects all aspects of the life of an organism. [24] The following definitions are given by the evolutionary biologist Theodosius Dobzhansky: 1. Adaptation is the evolutionary process whereby an organism becomes better able to live in its habitat or habitats. [25] [26] [27] 2.
Genetic variation is the result of mutations, ... a field that attempts to explain features of human psychology in terms of adaptation to the ancestral environment.
The study of human genetic variation has evolutionary significance and medical applications. It can help scientists reconstruct and understand patterns of past human migration. In medicine, study of human genetic variation may be important because some disease-causing alleles occur more often in certain population groups.
studies of human anatomy, physiology, molecular biology, biochemistry, and differences and changes between species, variation between human groups, and relationships to cultural factors Evolutionary anthropology studies both the biological and the cultural evolution of humans, past and present.
The variation that can best adapted to their surroundings will survive. [ 1 ] The adaptive value represents the combined influence of all characters which affect the fitness of an individual or population.
A psychological adaptation seen universally in humans is to easily learn a fear of snakes. [1] A psychological adaptation is a functional, cognitive or behavioral trait that benefits an organism in its environment. Psychological adaptations fall under the scope of evolved psychological mechanisms (EPMs), [2] however, EPMs refer to a less ...