Are The Humans Stiil Evolving?

Páginas: 2 (406 palabras) Publicado: 18 de noviembre de 2012
Are humans still evolving?
The characteristics of populations or spices can change over time; therefore, in response to the environment pressures, the frequency of heritable characteristics willchange from generation to the next, and evolution by natural selection will take place.
The modern theory of evolution is now widely accepted, the concept of natural selection to human would createcontroversy in a religions society. The theory of evolution has since been applied to understand of human variations in several ways.
Biological characteristics are commons components of humans sociallydefine races; humans populations display variations in features such as; stature, hair and skin color, which corresponds with environmental conditions.
Culture has an important role in understandwhether evolution is still influence the biological of our spice. Genetic fossils and archaeological evidence have now demonstrated that all humans share a common ancestor who lived approximately 200,000years ago in Eastern Africa. Reports in media and the popular writings of academics commonly claim that evolution is no longer relevant to humans and that, as spices, we now depend on culture andtechnology for survival.
In combination, behavioral and physiological flexibility form a two-tiered against environmental stress. These mechanisms can be linked to the regulation of genes, but theirvariability might be mediated by environmental conditions without changes in gene frequency. Our dependence on technology can be seen as different to that of other spices in our capacity for cumulativecultural change, which provides greater potential to remove humans from a direct relationship with the natural world.
Since the origins of agriculture, the rate of technological progress has increasedexponentially, an example of that is the discovery of the fire that allowed eating cooked meats and a more varied diet than the chimpanzee.
The evidence says that humans are not evolving, much of...
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