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What Is Macroevolution?
Beginning of essay
In science, macro at the beginning of a word just means "big", and micro at the beginning of a word just means "small" (both from the Greek words).
In evolutionary biology today, macroevolution is used to refer to any evolutionary change at or above the level of species. It means the splitting of ....
Middle of essay
....f macroevolution
In the "modern synthesis" of neo-Darwinism, which developed in the period from 1930 to 1950 with the reconciliation of evolution by natural selection and modern genetics, macroevolution is thought to be the combined effects of microevolutionary processes. In theories proposing "orthogenetic evolution" (literally, straight line evolution), macroevolution is thought to be of a different calibre and process than microevolution. Nobody has been able to make a good case for orthog.... |
| Number of words: 1087 |
Approximate pages: 4 |
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