Variation in organisms from "summary" of On the Origin of Species By Means of Natural Selection by Charles Darwin
The variation in organisms is a fundamental aspect of the natural world. Every individual is unique in its own way, possessing traits that set it apart from others of its kind. This variation can be observed in a myriad of characteristics, from physical appearance to behavior to genetic makeup. These differences are not random or arbitrary, but rather the result of a complex interplay between genetic inheritance and environmental factors. Organisms inherit a set of genes from their parents, which determine their basic characteristics. However, these genes can be subject to mutation, leading to new variations that can be passed on to future generations. Environmental factors also play a crucial role in shaping the characteristics of organisms. The conditions in which an organism lives can influence its physical development, behavior, and even genetic expression. For example, a plant growing in a sunny climate may develop larger leaves to bette...
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