A simple definition: A web service is a function that can be accessed by other programs over the web (Http). To clarify a bit, when you create a website in PHP that outputs HTML its target is the browser and by extension the human being reading the page in the browser.
Although a lack of dietary iodine is the main cause of goiter in many parts of the world, this is not often the case in countries where iodine is routinely added to table salt and other foods. 1  Graves' disease. 2  Goiter can sometimes occur when your thyroid gland produces too much thyroid hormone (hyperthyroidism). Goiter can sometimes occur when your thyroid gland produces too much thyroid hormone (hyperthyroidism). 2  In Graves' disease, antibodies produced by your immune system mistakenly attack your thyroid gland, causing it to produce excess thyroxine.
List of Diseases Caused by Bacteria & Protozoa. Infectious diseases are caused by small microbes invisible to the eye. The microbes include bacteria, protozoans, fungi, yeast and virus.Of them bacteria and protozoans are the most common disease causing agents. Bacteria cause disease both in plants and animals.acteria causes wide set of diseases by deranging the host physiology. courtesy:wikicommons. Most of the diseases caused by bacteria are life threatening and also damaging to the affected organ. Once infected the common symptoms like fever, weakness are observed by the host.