LIVING ORGANISMS
                                         
                                         
        WHY DO WE CLASSIFY LIVING ORGANISMS ?
        WHY DO WE CLASSIFY LIVING ORGANISMS ?
           ANS. WE CLASSIFY LIVING ORGANISMS 
           ANS. WE CLASSIFY LIVING ORGANISMS 
               FOR THEIR CONVENIENT STUDY
               FOR THEIR CONVENIENT STUDY
                               
                               
                 BASIS OF CLASSIFICATION 
                 BASIS OF CLASSIFICATION 
     THERE ARE DIFFERENT BASIS OF CLASSIFYING 
     THERE ARE DIFFERENT BASIS OF CLASSIFYING 
      LIVING ORGANISMS  
       LIVING ORGANISMS  
      ON THE BASES OF THEIR HABITAT 
        ON THE BASES OF THEIR HABITAT 
     EUKARYOTIC AND PROKARYOTIC 
       EUKARYOTIC AND PROKARYOTIC 
     UNICELLULAR AND MULTICELLULAR 
       UNICELLULAR AND MULTICELLULAR 
     PHOTOSYNTHETIC AND NON PHOTOSYNTHETIC 
       PHOTOSYNTHETIC AND NON PHOTOSYNTHETIC 
     ON THE BASIS OF FEEDING HABIT
       ON THE BASIS OF FEEDING HABIT
     ON THE BASIS OF BODY STRUCTURE ETC.  
       ON THE BASIS OF BODY STRUCTURE ETC.  
                               
                               
             CLASSIFICATION AND EVOLUTION 
              CLASSIFICATION AND EVOLUTION 
    CLASSIFICATION OF LIVING ORGANISMS IS RELATED 
    CLASSIFICATION OF LIVING ORGANISMS IS RELATED 
      TO 
      TO 
    EVOLUTION 
    EVOLUTION 
    EVOLUTION : THE FAMOUS DEFINITION OF 
    EVOLUTION : THE FAMOUS DEFINITION OF 
      EVOLUTION GIVEN BY CHARLES DARVIN IS
      EVOLUTION GIVEN BY CHARLES DARVIN IS
      “ DESCENT WITH MODIFICATION “ 
      “ DESCENT WITH MODIFICATION “ 
    THAT IS GRADUAL CHANGES FROM SIMPLE TO 
    THAT IS GRADUAL CHANGES FROM SIMPLE TO 
      COMPLEX IN LIVING ORGANISMS
      COMPLEX IN LIVING ORGANISMS
                               
                               
          THE HIERARCHY OF CLASSIFICATION GROUPS
          THE HIERARCHY OF CLASSIFICATION GROUPS
     GROUPING ORGANISMS IN DIFFERENT CATEGORIES AND SUB 
     GROUPING ORGANISMS IN DIFFERENT CATEGORIES AND SUB 
        CATOGARIES . EACH STEP IS CALLED TAXON . AERRANGING 
        CATOGARIES . EACH STEP IS CALLED TAXON . AERRANGING 
        TAXONS ON THE BASIS OF THEIR SIZE IS CALLED HIERARCHY. 
        TAXONS ON THE BASIS OF THEIR SIZE IS CALLED HIERARCHY. 
        THESE ARE  
        THESE ARE  
                
                
                  KINGDOM
                  KINGDOM
                    PHYLUM (ANIMALS) / DIVISONS(PLANTS) 
                    PHYLUM (ANIMALS) / DIVISONS(PLANTS) 
                      CLASS
                      CLASS
         ORDER 
         ORDER 
           FAMILY 
           FAMILY 
              GENUS
              GENUS
                 SPECIES   
                 SPECIES   
     SO THE LOWERMOST OR THE BASIC UNIT OF CLASSIFICATION 
     SO THE LOWERMOST OR THE BASIC UNIT OF CLASSIFICATION 
        IS SPECIES.
        IS SPECIES.