Examlex
Pyogenic streptococci usually produce ___________-hemolysis when cultured on blood agar.
Background Extinction
The natural rate at which species become extinct as part of earth's biological history, without human influence.
Genetic Diversity
The total number of genetic characteristics in the genetic makeup of a species, crucial for adaptation and survival amidst environmental changes.
Survival Fittest
A concept from evolutionary theory referring to the survival and reproduction of organisms that are best adapted to their environment.
Extinction Rate
The rate at which species become extinct, often accelerated by human activities and environmental changes.
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