System testing is basically a part of software testing and test plan should always contain specific space for this testing. To test the system as a whole, requirements and expectations should be clear and the tester needs to understand real time usage of application too.
The city of Milwaukee, Wisconsin was chosen as the location in which Happy Days was set. Tom Miller, one of the producers, grew up in Milwaukee. In addition, Milwaukee gave the show a midwest flavor that they thought would appeal to a broad-based audience.
Bring the oxygenated blood to the cells. the tissues and the cells trade of waste and CO2. Which is carried through the venules and the veins. Through the larger vena cava to the atrium and lungs. And we're back to where we started in the heart.. I found these lyrics on a webpage about Happy Days.... apparently a long time ago on Happy Days one of the characters sang this song to remember the blood flow in the heart for a test, or something like that....