Question:
Fitness according to Darwin refers to
Fitness according to Darwin refers to
Updated On: Jul 6, 2022
- number of species in a community
- useful variation in population
- strength of an individual
- reproductive fitness of an organism
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The Correct Option is D
Solution and Explanation
The fitness, according to Darwin, refers ultimately and only reproductive fitness. Hence, those who are better fit in an environment, have more progeny than others. These, therefore, will survive more and are selected by nature. He called it natural selection and implied it as a mechanism of evolution
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Concepts Used:
Evolution
Evolution is a process that occurs in changes in the genetic content of a population over time. Evolutionary change is generally classified into two: microevolution and macroevolution. The process of changes in allele frequencies in a population over time is a microevolutionary process. Three main mechanisms that cause allele frequency change are natural selection, genetic drift, and gene flow. On the other hand, macroevolution refers to change at or above the level of the species.