Parasitism

Parasitism is a type of symbiotic relationship in which one organism (the parasite) obtains its nourishment, and often shelter, from another organism (the host). This relationship is typically harmful to the host, who may suffer death, illness, or reduced reproductive success due to the parasite's presence. Parasites are found in various habitats and across a wide range of species, including plants, animals, and microbes. As such, parasitism is a major evolutionary force, driving hosts to evolve mechanisms for defending themselves against these organisms. In addition, parasites can have an important role in food webs, controlling populations of prey and even providing food for predators. With its widespread importance and potential applications, parasitism is an important subject of study in ecology and evolutionary biology.