Biology is a branch of science which deals with life and characteristics of living organisms. In fact biology itself is not a single subject but is a group of sub-disciplines. Biology starts with cell which is the basic of life and living systems but has no end point as it is an ocean of knowledge and whatsoever we have discovered and known about biology so far is only 10 percent of the whole knowledge. The vastness and richness of this discipline can be understood simply by looking at the number of sub-disciplines it has:
•Cell biology (Cytology)
•Histology (study of tissues)
•Physiology (study of living systems and their functioning)
•Genetics (study of genes and mode of inheritance)
•Ecology (study of relationship between living systems and environment)
•Evolutionary biology (study of evolution of living system)
•Bio-chemistry(study of chemicals inside the living body)
•Micro-biology(study of microorganisms like bacteria, virus and algae)

November 29th, 2010
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