A short note in parasitism?
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Parasitism (GK. Para-beside, sitos-food) is a close association between two living organisms of different species where one is benefitted (called parasite) and the other is harmed (called host). In parasitic mode of nutrition, the parasites obtain their nutrition from the host tissue by special structure called haustoria. Haustoria are metabolically very active and exihibit enzymatic activity. Parasitic plants are either total or partial parasites and they may be stem or root parasites.This is an interaction in which one species, parasite benefits and the other, host, is harmed. For the parasite, which is generally much smaller than its host is, the host is a source of both food and shelter. The parasite does not kill its host immediately after infecting it, otherwise, the parasite would soon become extinct being unable to reproduce.
Parasitic organisms generally have higher reproductive rates and exhibit a greater host specificity. They are often highly specialized in structure, physiology and life history patterns, all in response to their mode of life and to problems associated with dispersal from one host to another. Some animal groups, which include tapeworm and malarial parasite, have become adapted to very parasitic life. Such specialized species as the human malarial parasite have very complex life cycles since a vector is also involved along with the host to aid in reproduction and dispersal. Because of host specificity, many parasites can live in only one of a few related host species, and such intimate host-parasite interaction could be potentially limiting to both populations.
Parasitic organisms generally have higher reproductive rates and exhibit a greater host specificity. They are often highly specialized in structure, physiology and life history patterns, all in response to their mode of life and to problems associated with dispersal from one host to another. Some animal groups, which include tapeworm and malarial parasite, have become adapted to very parasitic life. Such specialized species as the human malarial parasite have very complex life cycles since a vector is also involved along with the host to aid in reproduction and dispersal. Because of host specificity, many parasites can live in only one of a few related host species, and such intimate host-parasite interaction could be potentially limiting to both populations.
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Parasitism is the mode of interaction between two organisms where one organism depends on other for food and shelter and this process damages the host.In this process one organism is benefitted and other is being harmed.
The life cycles of parasitesare often complex involving on or two intermediate hosts to facilitate parasitisation of its primary host.
e.g.Human liver fluke ,Malarial parasite.
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The life cycles of parasitesare often complex involving on or two intermediate hosts to facilitate parasitisation of its primary host.
e.g.Human liver fluke ,Malarial parasite.
♡ Hope it helps
♡ Follow me
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