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Exclusion criteria concern properties of the study sample, defining reasons for which patients from the target population are to be excluded from the current study sample. Typical exclusion criteria are defined for either ethical reasons (e.g., children, pregnant women, patients with psychological illnesses, patients who are not able or willing ...
In ecology, the competitive exclusion principle, [1] sometimes referred to as Gause's law, [2] is a proposition that two species which compete for the same limited resource cannot coexist at constant population values. When one species has even the slightest advantage over another, the one with the advantage will dominate in the long term.
Selection bias is the bias introduced by the selection of individuals, groups, or data for analysis in such a way that proper randomization is not achieved, thereby failing to ensure that the sample obtained is representative of the population intended to be analyzed. [1]
In the design of experiments, consecutive sampling, also known as total enumerative sampling, [1] is a sampling technique in which every subject meeting the criteria of inclusion is selected until the required sample size is achieved. [2]
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 ...
According to the competitive exclusion principle, species less suited to compete for resources must either adapt or die out, although competitive exclusion is rarely found in natural ecosystems. [3] According to evolutionary theory, competition within and between species for resources is important in natural selection. More recently, however ...
In cellular biology, inclusions are diverse intracellular [1] non-living substances (ergastic substances) [2] that are not bound by membranes. Inclusions are stored nutrients/deutoplasmic substances, secretory products, and pigment granules.
Inclusion (mineral), any material that is trapped inside a mineral during its formation; Inclusion bodies, aggregates of stainable substances in biological cells; Inclusion (cell), insoluble non-living substance suspended in a cell's cytoplasm; Inclusion (taxonomy), combining of biological species; Include directive, in computer programming