Tornado Information for Strang, Oklahoma. Strang, OK is a Very High Risk area for tornados. According to records, the largest tornado in the Strang area was an F4 in 1991 that caused 22 injuries and 0 deaths. *Tornado risk is calculated from the destruction path that has occured within 30 miles of the location.
When invaded by antigens, the body forms substances called antibodies When the body overreacts to a specific antigen, which is a hypersensitivity reaction, this is a(n)
In other cases, the immune system responds to a seemingly harmless foreign substance such as ragweed pollen. The result is allergy, and this kind of antigen is called an allergen. The Structure of the Immune System T he organs of the immune system are positioned throughout the body.ntroduction T he immune system is a network ofcells, tissues *, and organs that worktogether to defend the body against attacksby âforeignâ invaders. These are primarily microbes (germs)âtiny, infection-causing organisms such as bacteria, viruses, parasites, and fungi.