The following points highlight the four main terms that have been widely used for various types of heterogenetic association: 1. Phoresis 2. Amensalism 3. Commensalism 4. Mutualism and Symbiosis. Term # 1. Phoresis: Phoresis is a term used for a particular type of heterogenetic association in which one individual merely provides shelter, support or transport for another organism of a [...]
Helminths or worms are animals belonging to the Subkingdom, Metazoa, consisting of many cells. The term helminth, which is derived from the Greek words helmins or helminthos, a worm, is now-a-days usually applied only to the parasitic and non-parasitic species. In a more restricted sense the name worm, or preferably helminth, is applied to a few phyla of animals, all [...]
In this article we will discuss about: 1. Symptoms and Pathogenesis of Amoebic Dysentery or Amoebiasis 2. Prophylaxis (Prevention) and TreatÂment of Amoebic Dysentery. Symptoms and Pathogenesis of Amoebic Dysentery or Amoebiasis: Generally E. histolytica lives in the lumen of large intestine of man as harmless minute forms. The trophozoite stage of this parasite penetrate mucosa and submucosa and here [...]