Saturday, March 26, 2011

Adaptation


Adaptation
Adaptation is the most basis and rather self evident concept. The organism’s are surviving because they are adapted and they are adapted because they are surviving. Since the environment is ever changing , the different organisms should either change accordingly in order to survive in the rigorousof the new circumstances or be ready for extinction. Therefore, a sucession of environmental changes is paralleled by the development of adaptive features, morphological and physiological including food and feeding habit, way of living, defensive mechanism and protection against bad weathers etc.
The fact becomes more evident when use observe the nature and the living organisms all round. Aquatic different organization have common features of possessing paddles like appendages for swimming. The flying animals  all posses wing or wing like structures. It means that the organisms are adopted to their made of life.
Therefore, Adaptation can be defined as “the modification in the body organization or physiology of organisms, which enables them to thrive successfully in a particular environment. So that are able to secure sufficient food , to protect and to reproduce sucessfully for maintaining the continuity of race”.
 In more simple languages “Adaptation is the morphological and physiological modification in an organisms to adjust itself in a particular enviroment”. Since the environment is ever changing, the different organisms should either change accordingly in order to survive in the rigours of the new circumstances or be ready for extinction. Therefore, a succession of environment change is paralleled by the development of adaptive features morphological and physiological including food and feeding habit way of living defensive mechanisms and protection against bad weathers etc.
Jean Baptiste de Lamark first emphasized that animals modify themselves according to the changing environment, Darwin believed that animals are preadopted and seek suitable environment.
Kinds of Adaptation
Adaptation can be classified under following four heads:
  1. Structeral Adaptation
  2. Physiological Adaptation
  3. Protective Adaptation
  4. Animal association Adaptation.

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