What is parasitism and parasitic adaptation.discuss parasitic adaptation in fasciola hepatica.
Answers
Answer:
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Parasites are adapted so that they receive maximum benefit from the host but do not kill them.
Answer:
A parasite is those organism which lives at the expense of other organism, and in return it cause injury or harm to the host. Such an association in which one organism, the parasite, is benefited while the another one, the host, is harmed is called parasitism.
Parasitism has evolved accidently as a result of contact between different forms of animals, mainly for the purpose of obtaining nourishment and receiving shelter. In the process the organism from which nourishment is being obtained gets harmed. An ideal parasite is that which does not cause too much harm to its host because if the host dies the parasite depending upon the host will also have to die.
According to Elton “the union of parasite and host is usually an elaboration compromise between extracting sufficient nourishment to maintain and propagate itself and not impairing too much the vitality or reducing the number of its host which is providing it with a home and free ride.”