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.
An ecosystem may be aquatic or terrestrial. In an aquatic ecosystem rocks are needed for shelter and plants provide oxygen for fish. An ecosystem is balanced when the natural animals and plants and non-living components are in harmony-i.e. there is nothing to disturb the balance.With increasing pollution, change in migratory patterns, and rise of human population, many ecosystems are in danger of losing that harmony.Advantages.n ecosystem may be aquatic or terrestrial. In an aquatic ecosystem rocks are needed for shelter and plants provide oxygen for fish. An ecosystem is balanced when the natural animals and plants and non-living components are in harmony-i.e. there is nothing to disturb the balance.