INTRODUCTION TO BIOLOGY
Now a days we find contributions of Aristotle, Socrates, Theophrastus and many other scholars of the past age in different fields of knowledge. This is not possible for the scholars of the present time. A question may arise in your mind as to why it is not possible today. The reason is that in ages long past the extent of knowledge was limited. People engaged in achieving knowledge were also small in number. Today the dimension of knowledge has been increased many times. To contribute in more than one field is quite difficult at the present time. For convenience to know and understand things we have divided our world of knowledge in many branches. In this way Science, Literature, Arts, Social Science and many other branches have been created. As a whole, knowledge of human beings is undivided. But it has been divided into various branches for easy learning and understanding.
You may have known that the knowledge of science is increasing rapidly. It is becoming possible because of the research of a large number of scientists in different fields of science. Many people think that knowledge of science is becoming double in every eight years. New subjects of science are being created. It is not possible to realize and understand this huge store of knowledge for an individual alone. As a result, scientists are engaged in research in particular subject or topic. At different times many scholars have divided the knowledge of science in various ways. The division and different branches of science are constantly spreading with the increase of knowledge in science. The two main branches of science are Physical science and Biological Science.
Physical Science is otherwise called the Science of non-living things. In Physical science characteristics, actions-reactions, multiformaity and many similar other properties of non-living objects are examined and discussed.
Observation, examination and discussion of livings beings are included in Biology. Biology is the science of living beings. The term Biology comes from two Greek words (bios means life and logos means knowledge). Aristotle is regarded as the father of Biology.
We find two types of life in nature. One is plant while the other is animal. Accordingly Biology has been divided into two branches: Botany and Zoology. Botany deals with theoretical discussion and research about characters and other features of plants, while Zoology is limited in subjects relating to animals.
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