EVOLUTION IS THE SLOW CHANGE OF BODY DESIGN OVER A LONG PERIOD OF TIME.
IT IS FROM THE UNICELLULAR ORGANISMS THAT THE PRESENT MULTICELLULAR ORGANISMS HAVE EVOLVED.
SO ITS NOT APPROPRIATE TO TELL THAT EVOLUTION IS DIRECTLY RELATED TO CLASSIFICATION.
ITS THE RESULT OF EVOLUTION THAT ORGANISMS ARE CLASSIFIED ON THE BASIS OF THEIR SIMILARITIES AND DISSIMILARITIES.
THEREFORE CLASSIFICATION IS JUST A MEDIUM FOR EVOLUTION
EXAMPLE:
SUPPOSE A AND B ARE SIBLINGS AND C IS THEIR COUSIN. NOW, A AND B ARE CLOSELY RELATED AS THEY SHARE THE COMMON RECENT ANCESTORS(PARENTS). HOWEVER EVEN A AND C ARE RELATED BUT COMPARATIVELY LESS CLOSELY RELATED LIKE A AND B THOUGH THEY SHARE COMMON ANCESTORS (GRANDPARENTS)....
HOPE THAT IT WAS USEFUL.....