TY - JOUR N2 - Biology is a science on life. This definition, concise and most commonly used, is satisfactory for almost everybody. It is otherwise when one asks: What is life? Then it appears that no one feature can be indicated which distinguishes “the living” from “the non-living.” The author presents the sources of these difficulties and then gives his own attempt to solve the problem of definition of live—which is based on the idea of levels of the biological organization. In author’s view, to characterise the objects of research in biology we should apply not one concept of life (or of living organism) but three concepts: of organized biological matter (for the molecular and sub-cellular levels), of living organism (for the level of the specimen), and of life (for the sphere of phenomena which occur on the population-species-biocenotic level). L1 - http://www.czasopisma.pan.pl/Content/114635/PDF-MASTER/02_Ku%C5%BAnicki.pdf L2 - http://www.czasopisma.pan.pl/Content/114635 PY - 2019 IS - Część 2 EP - 27 KW - definition of life KW - living organism KW - organized biological matter A1 - Kuźnicki, Leszek PB - Instytut Filozofii i Socjologii PAN PB - Instytut filozofii UMCS VL - Tom 7 DA - 2019.11.12 T1 - Whether and how to define life? SP - 19 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/114635 T2 - Filozofia i Nauka ER -