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.
In this lecture we will look at one ecosystem in detail, the tropical rain forest. There are several reasons for this. First, ecosystems may all function according to the same basic principles, but they most certainly don't all look the same and it is important to have some understanding and appreciation of this diversity.