These two statements imply that an entity is considered as a living organism has at least one cell (the basic unit of life). It could be eucaryote or procaryote, unicellular or pluricellular. It has his own metabolism and its own genetic material.
Prions, viruses, and bacteriophages are not considered as a living organism, because they are technically not a cell, and does not all the property and the structure of a cell.