human biology major

About four million of different plant species and thirteen million of animal species have been named and described till today. The number is not yet final because the description of more and more new species is being added to  it almost every day. It is assumed that the number will reach a crore in future when the description of all the organisms will be ended. A large number of organisms of needed to be grouped systematically for the convenience to know, understand and learn them. many years back natural scientists felt the necessity to classify living world following a natural system. From this very necessity, a distinct branch of biology,taxonomy had emerged. the aim of classification is only one to know the vast and diverse living world accurately and classify them with little effort in a short period of time. The contribution of Swedish botanist, physician and zoologist Carol us Linnaeus (1707-1778) in the field of taxonomy is more worth mentioning. In 1735 at the age of 28, he took his doctoral degree in medicine at the university of Hardwired, and in 1741 he was appointed professor of Medicine at Upscale University . Though he was first responsible for medicine-related matters, soon he changed his position with the other professor of medicine to become responsible  for the Botanical Garden, botany and natural history instead. He thoroughly reconstructed and expended the Botanical Gender. It was main field of his intense interest to classify organisms from his botanical and zoological observations that he assembled from his many expeditions. He classified living world into two kingdoms- plant and animal.