Examlex
The elasticity of demand for cigarettes is more inelastic in the long run than in the short run because it takes a long time for some people to quit smoking.
Noctuid Moths
A family of moths, many of which are nocturnal, with species that vary widely in behavior and habitat but often have dull colored wings for camouflage.
Evolutionary Arms Race
A cycle of adaptations and counter-adaptations occurring between competing species or between predators and their prey.
Natural Selection
The process by which heritable traits that confer a survival and reproductive advantage increase in frequency in a population, leading to evolutionary change.
Gene Expression
Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product, often a protein.
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