Theories of molecular evolution try to explain the natural history of deoxyribonucleic acid (DNA), which is the material carrier of genetic information. Evolutionarily relevant variations between organisms must be implemented in the biochemical structure of DNA sequences. Otherwise, those variations would not be genetically transmitted from an organism to its offspring, so they would disappear
Evolution, in the modern sense, refers to changes in the genetic composition of populations over time and is the result of natural selection and/or genetic drift acting on population variation. In this Darwinian paradigm, species may change or split into more than one species (speciation). All extant species are descendants of a common ancestor (descent
Cognitive thought processes that arise from consciousness are depicted as being an exclusive human characteristic. Reflected in the metaphysical views from Aristotle (384-322 BCE) to Rene Descartes (1596-1650), the philosophical implications for our species result in an unbridgeable chasm between our species and the rest of the animal kingdom. These geocentric and anthropocentric depictions of
This article critically examines the evolution and critiques of the Biopsychosocial Model model, offering a comprehensive overview of its historical development and theoretical foundations. Beginning with the early influences such as the biomedical and psychosocial models, the narrative explores the emergence of health psychology as a distinct field, emphasizing George L. Engel’s Biopsychosocial Model and the