Sunday, October 11, 2015

WHAT IS BIOLOGY?

1.1 WHAT IS BIOLOGY?
On your way across school campus take a moment to look around you. You will notice a variety of organism around you, e.g. sparrows, squirrels trees, bushes, grasses etc. In addition to the countless tiny ones. These all living things are studied under the head of scientific discipline called Biology. The word biology is composed of two Greek words bios meaning life and logos meaning discourse, thought, and reasoning or in simply the study. It is a branch of natural science that deals with organisms and different phenomena of life. Biology is further divided into two main branches i.e. Botany and Zoology. Botany (Gr: Botane means plants) is a branch of biology which deals with scientific study of plants while Zoology (Gr: Zoo means animals) deals with the scientific study of animals. According to the revised classification system all the small, usually, microscopic organisms which were previously classified as plants or animals have now been separated into independent groups. Study of these micro-organisms is called Microbiology.
The study of biology provides information about:
1) Various kinds of living organism existing on earth.
2) Relation of existing organisms with extinct organisms.
3) Identification and grouping of living organisms on the basis of similarities, dissimilarities and relationship.
4) Structure, function of an organism.
5) Inheritance of characters from one generation to next generation.
6) Relationships of organisms to their environment.
7) Harmful and beneficial effects produced by different living organisms etc

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