Examlex
________ values of the standard deviation result in a normal curve that is wider and flatter.
Free-Living Bacteria
Bacteria that exist and proliferate in the environment independently, not requiring a host organism for survival.
Frequency-Dependent Selection
An evolutionary process by which the fitness of a phenotype depends on its frequency relative to other phenotypes in a given population.
Soapberry Bug
A species of beetle that has been widely studied as an example of rapid evolutionary change in response to changes in its environment, specifically in the types of plants it feeds on.
Beaks
The hard, external, projecting jaws of birds, made of keratin, that are adapted to their feeding habits.
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