The immune system has four main functions: 1  Protection against foreign microorganisms such as bacteria, viruses, parasites, and fungi. 2  Homeostasis (body equilibrium) through the removal of worn out or dead cells. 3  Surveillance and removal of mutant cells. 4  Regulation through increasing and suppressing immune response.
In 2001, Jackson entered the Women's National Basketball Association (WNBA) draft and was selected by the Seattle Storm, which viewed Jackson as a franchise player. She has won two WNBA titles with the Storm, in 2004 and 2011, the latter also earning Jackson the WNBA Finals Most Valuable Player Award.
Perseus Percy Jackson is a seventeen-year-old Greek demigod, the son of Poseidon and Sally Jackson. He is the head counselor of Poseidon's Cabin and a former Praetor of the Twelfth Legion at Camp Jupiter. He is currently in a relationship with Annabeth Chase.