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where ¯ is the mean relative fitness in the population (again setting aside changes in frequency due to drift and mutation). Relative fitnesses only indicate the change in prevalence of different genotypes relative to each other, and so only their values relative to each other are important; relative fitnesses can be any nonnegative number ...
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
By his own account, Herbert Spencer described a concept similar to "survival of the fittest" in his 1852 "A Theory of Population". [9] He first used the phrase – after reading Charles Darwin's On the Origin of Species – in his Principles of Biology of 1864 [10] in which he drew parallels between his economic theories and Darwin's biological, evolutionary ones, writing, "This survival of ...
Anecdotally, being physically fit will look and feel different for everyone, but can often mean you have good energy, feel strong, are able to perform daily functions without pain, have mental ...
The WHO definition is not without criticism; mainly that it is much too broad. The most solid aspects of wellness that fit firmly in the realm of medicine are environmental health, nutrition, disease prevention, and public health. These matters can be investigated at length, and can assist in measuring well-being.
The effective fitness function models the number of fit offspring [1] and is used in calculations that include evolutionary processes, such as mutation and crossover, important on the population level. [9] The effective fitness model is superior to its predecessor, the standard reproductive fitness model.
Physical fitness, a state of health and well-being of the body; Fitness culture, a sociocultural phenomenon surrounding exercise and physical fitness; Fitness (biology), an individual's ability to propagate its genes; Fitness (cereal), a brand of breakfast cereals and granola bars; Fitness, a women's magazine, focusing on health and exercise
Inclusive fitness is a conceptual framework in evolutionary biology first defined by W. D. Hamilton in 1964. [1] It is primarily used to aid the understanding of how social traits are expected to evolve in structured populations. [2]