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The underlying theme of the essay is the need to teach biological evolution in the context of debate about creation and evolution in public education in the United States. [5] The fact that evolution occurs explains the interrelatedness of the various facts of biology, and so makes biology make sense. [6]
In biology, evolution is any change across successive generations in the heritable characteristics of biological populations. Evolutionary processes give rise to diversity at every level of biological organization , from kingdoms to species , and individual organisms and molecules , such as DNA and proteins .
Evolutionary biology is the subfield of biology that studies the evolutionary processes (natural selection, common descent, speciation) that produced the diversity of life on Earth. It is also defined as the study of the history of life forms on Earth. Evolution holds that all species are related and gradually change over generations. [1]
Evolutionary biology – Study of the evolution of life Evolutionary developmental biology – Comparison of organism developmental processes; Genetics – Science of genes, heredity, and variation in living organisms; Biogeography – Study of distribution of species; Ecological genetics – Study of genetics in natural populations ...
Megaevolution has been extensively debated because it has been seen as a possible objection to Charles Darwin's theory of gradual evolution by natural selection. [1] A list was prepared by John Maynard Smith and Eörs Szathmáry which they called The Major Transitions in Evolution. [2] [3] On the 1999 edition of the list they included:
In biology, evolution is the process of change in all forms of life over generations, and evolutionary biology is the study of how evolution occurs. Biological populations evolve through genetic changes that correspond to changes in the organisms ' observable traits .
The Origins of Life: From the Birth of Life to the Origin of Language. Ernst Mayr (2002). What Evolution Is. Ernst Mayr (2007). One Long Argument: Charles Darwin and the Genesis of Modern Evolutionary Thought. Kenneth R. Miller (2000). Finding Darwin's God: A Scientist's Search for Common Ground Between God and Evolution. Kenneth R. Miller (2008).
Evolution is the change in the heritable characteristics of biological populations over successive generations. [1] [2] It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. [3]