National Certification â how to get it and what it means. After graduation from the KU's CLS program, students are eligible to take the national certification examination. In most medical laboratories, certification is a requirement for continued employment (as well as advancement and optimum salary).
Ecosystem. Definition. noun, plural: ecosystems. A system that includes all living organisms (biotic factors) in an area as well as its physical environment (abiotic factors) functioning together as a unit.Supplement. An ecosystem is made up of plants, animals, microorganisms, soil, rocks, minerals, water sources and the local atmosphere interacting with one another.oun, plural: ecosystems. A system that includes all living organisms (biotic factors) in an area as well as its physical environment (abiotic factors) functioning together as a unit.
An ecosystem is a self sustaining structural and functional unit of the biosphere. The ecosystem may be large or small. In the biosphere several ecosystems exist. Usually there is exchange of material and energy between adjoining ecosystems.