Definition of biology

Is called biology science that addresses the study of living things from the point of view of their origin, evolution, reproduction, etc. This study is carried out at the level of Atomic, molecular, cellular and multicellular. In this sense, biology then deals with the study of living beings (human, animal and plant) physically and in relation to the environment, during all their life.
The biology concept was used for the first time by Lamarck during what is known as an illustration. However, the discipline has a history of long history, dating back to the classical Greece. Thus, the first to reflect on life were the pre-Socratic philosophers, but not be able to reflect on a systematic knowledge. Aristotle would be one of the first to outline a series of guidelines which would have great influence in coming centuries, thanks in part to the study carried out on an enormous amount of animals; was the first to make a classification of living beings, having this effect for a long time, to be replaced with a new one made by Linnaeus. His successor, Theophrastus, wrote texts on Botany that had influence until the middle ages.
The Renaissance was a time of greening of this science, after an average age with few contributions. Vasalio distinguishes itself with its emphasis on empiricism, attitude that contrasts with a past that valued more to abstract thinking. However, this field of knowledge was not yet fully independent, and entremezclaba with insights that were unrelated to the scientific world.
The most important contributions would come in time to come, first with the aforementioned qualifying Lineo established species, then with the contributions of Charles Darwin in regards to evolution, and finally, with the cell theory, based on the foundations established Schwann and Schleiden. All this new knowledge would be complete in the 20th century with the introduction of genetics.
In addition, advances in the study of living beings, allowed the development of professions and much more specific disciplines, such as medicine, veterinary medicine, agronomy, marine biology or Botany. Each one of them, focuses his studies on certain group of living beings, and deepening the analysis of the processes occurring in them. In the majority of cases, biology intersects other sciences to respond to his studies, and it is then interdisciplinary analysis, as they can be with chemistry, mathematics and physics.
On the other hand, in the case of animals and plants, advances in biological studies, allowed developments productive, as in the case of livestock and the agrcultura, in the search for higher performance of raw materials, and the optimization of natural resources. For example, genetic modification so that plants produce more fruit or are immune to certain insect pests; or in the case of animal, of changes in the anatomy so cows produce more milk or meat improvements.
In addition to the purely theoretical, the contributions of biology have achieved numerous advances in the area of health, both for prevention and cure of diseases. In particular, the recent discovery of the human genome opens the door to new possibilities that still explore.
Apart from that, biology, after the discovery of the human genome (DNA) became embroiled in an ethical dilemma of what are the limits of man to modify or cause changes in the genetic or physical aspect of a person. In this case, cloning practices, yet not produced on human, was and is the center of discussion on several occasions.