brief intro of aschelminthes and detailed about their parasitic adaptation.
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Parasitic Adaptations in Helminthes : Morphological and Physiological Adaption! Helminthes are a group of invertebrate organisms which include animals belonging to two important phyla namely, platyhelminthes and nemathelminthes. ... In the process the organism from which nourishment is being obtained gets harmed
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Explanation: Helminthes are a group of invertebrate organisms which include animals belonging to two important phyla namely, platy helminthes and nemat helminthes. Several species of the group helminthes have adapted themselves to the parasitic mode of life.
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.”
To lead a parasitic mode of life, the parasites have adapted themselves in such a way as to survive and adjust itself with the body environment of their host. Adaptation is a dynamic process of adjustment with the new environment for establishment, self regulation, self preservation and race continuation.
It is a fundamental characteristic of all living organisms and is omnipresent Herbert Spencer defined adaptation as “the continuous adjustment of internal reaction to external reaction” The degree of adaptations exhibited by different types of parasites mainly depends upon their intimate relationship with their host.
Endo-parasites, which live within the body of their host for major or whole part of the life span show highest degree of adaptation. These adaptations may be morphological, physiological or reproductive.
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