electronic health record (EHR) a computerized repository for a patient's health information providing information to members of the health care team regarding a clinical encounter. Many systems can also provide decision support, quality assurance information and outcome data. Mosby's Medical Dictionary, 9th edition.
An ecosystem is a natural unit of plants, animals, and microorganisms functioning together with all non-living environmental factors. To conserve this delicate balance, it is important to know what part each piece of the natural ecosystem does for all the others.Preserving any bionetwork can be very difficult, because it is almost impossible to know what each element of the ecological unit adds to the equation.o conserve this delicate balance, it is important to know what part each piece of the natural ecosystem does for all the others. Preserving any bionetwork can be very difficult, because it is almost impossible to know what each element of the ecological unit adds to the equation.
A balanced diet proves essential for good health because it provides nutrients your body relies on to function properly but can't produce on its own. Some nutrients -- for example, carbohydrates and fats -- serve primarily as sources of fuel for your tissues, providing energy you need to get through the day. Other nutrients, including protein, vitamins and water, play other physiological roles in your health, and getting enough of them in your diet helps your cells function. Amino Acids and Protein Protein plays a key role in your body's functioning because it serves as a source of amino acids.