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.nflammation is one of the first responses of the immune system to infection. The symptoms of inflammation are redness, swelling, heat, and pain, which are caused by increased blood flow into tissue. Inflammation is produced by eicosanoids and cytokines, which are released by injured or infected cells.
Converting PST to EST. This time zone converter lets you visually and very quickly convert PST to EST and vice-versa. Simply mouse over the colored hour-tiles and glance at the hours selected by the column... and done! PST stands for Pacific Standard Time. EST is known as Eastern Standard Time. EST is 3 hours ahead of PST.
The U.S. has four main time zones. From west to east, they are: Pacific Time, Mountain Time, Central Time, and Eastern Time. E â¦ ach is one hour later than the last. For example, if it's 3 PM Pacific Time, then it's 4 PM Mountain Time, 5 PM Central Time, and 6 PM Eastern Time.Remember that going west always takes you back in time, and going east takes you into the future, so to speak.ach is one hour later than the last. For example, if it's 8 PM Pacific Time, then it's 9 PM Mountain Time, 10 PM Central Time, and 11 PM Eastern Time.