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In a few models, fan switches are operated by a bimetal strip that closes a set of contacts.
Individuals
Separate and distinct organisms or entities, often used in the context of discussing a single member of a species.
Natural Selection
The process by which traits become more or less common in a population due to consistent effects upon the survival or reproduction of their bearers.
Adaptive Changes
Adjustments or modifications in organisms or populations that enhance their survival and reproductive success in a particular environment.
Natality
The rate at which individuals produce offspring; the average per capita birth rate.
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