Examlex
Random selection refers to how subjects are assigned to experimental or control groups.
Natural Selection
A process by which species evolve over time as individuals with traits more suited to their environment are more likely to survive and reproduce.
Adaptive Evolution
The process through which populations become better suited to their environment through changes in genetic traits.
Nonadaptive Evolution
Evolutionary changes that occur without improving the biological fitness of an organism, often due to genetic drift.
Genetic Drift
A mechanism of evolution involving random fluctuations in gene frequencies within a population that can lead to significant genetic changes over time.
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