Evolution as a driving force from "summary" of Biology by Neil A. Campbell
The concept of evolution as a driving force in biology is fundamental to understanding the diversity of life on Earth. Evolution is the process by which species change over time through the accumulation of genetic mutations and natural selection. This process drives the creation of new species and the adaptation of existing species to changing environments. Evolution is driven by several key factors, including genetic variation, environmental pressures, and reproductive success. Genetic variation provides the raw material for evolution, as it allows for differences in traits within a population. Environmental pressures, such as competition for resources or changes in climate, drive natural selection by favoring individuals with advantageous traits. Reproductive success is the ultimate goal of evolution, as it determines which traits are passed on to future generations. One of the key insights of evolution is that it is a gradual process th...
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