The immune system is a system of many biological structures and processes within an organism that protects against disease.To function properly, an immune system must detect a wide variety of agents, known as pathogens, from viruses to parasitic worms, and distinguish them from the organism's own healthy tissue.isorders of the immune system can result in autoimmune diseases, inflammatory diseases and cancer. Immunodeficiency occurs when the immune system is less active than normal, resulting in recurring and life-threatening infections.
A truffle is the fruiting body of a subterranean Ascomycete fungus, predominantly one of the many species of the genus Tuber. Truffles are ectomycorrhizal fungi and are therefore usually found in close association with tree roots. Spore dispersal is accomplished through fungivores, animals that eat fungi.
September 11, 2011 in Unique Foods. What it is: A truffle is a mushroom fungus that grows underground. They usually live off the nutrients supplied by trees, meaning their usual location is around the roots of large plants and trees.Truffles are usually black or white, with slight color variations in between.hey are slightly reminiscent of wood or nuts. Because of the different varities, truffle flavor can differ depending on the source of the truffles. People who donât like them say they taste like dirty mushrooms. Tips: Truffles are very expensive to buy because of the difficulty in cultivation and harvesting.