What are examples of homeostatic maintenance by an organ system?

How were the Spitzer telescope pictures important to understanding stars? What is the art or science of cultivating the soil growing crops and raising livestock? What scientific theory for the creation of fossils? How are electrons structured in an atom? What is the amount of sodium atoms in 3.9 moles of sodium? How many grams equals a cc? What is The process of one gamete sex cell joining another? Should it be property vested in or property vested to? Can a fly larva survive in a living human body? What are the most abundant variable gases in your atmosphere? Would you expect to get a positive DNA test in a mature red blood cell? Liquids with high and low velocities differences? What is the air pressure at 5280 feet above sea level? What is the difference between perithecium and apothecium? Term for iliopsoas during hip extension? What is 60.7 meters converted to inches? Who are three people who were mentally or physically handicapped and yet became world famous such as Helen Keller did? What are the atomicity of the elements in the periodic table? A scientist is curious about the structure of a certain mineral and carries out lab research designed to determine this chemical structure this is an example of? What is the most important for maintaining a stable climate on Earth over the time it took for large organisms to evolve?