Monday, 12 September 2011

CLASSIFICATION OF LIVING ORGANISMS 1.1 CLASSIFICATION:


CLASSIFICATION OF LIVING ORGANISMS
1.1 CLASSIFICATION:
           Thousands of living organisms are found in this world.Some of them are large and some are small.Among them some resemble to each other in shape and form and many are distinctly different from one another.Living organisms are arranged in different groups due to their differences and similarities.This grouping is called Classification.In this grouping organisms are placed into different units are given technical names.The basic unit of classification is Species.A species can be defined as,a group of closely resembling organisms that can interbreed in nature but are not able to sexually reproduce with individuals of other species; for example cat and rabbit are two species.All cats belong to one species and all rabbits belong to another species.All individuals of one species are different from the individuals of other species and cannot reproduce with them in nature.It is necessary for study of living organisms to classify them in different groups.It is easy to study organisms on the basis of classification.Classification of living organisms tell us interrelationship among them and very closely resembling individuals are placed in the same group and distinctly different individuals are grouped in different groups.In this way,organisms are identified on the basis of their structures and other characteristics.So we can study then systematically and logically.

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