> is there even a strict definition for what an organism is?
I don't know how "strict" it is but the dictionary definition of "organism" is "an individual form of life, such as a bacterium, protist, fungus, plant, or animal, composed of a single cell or a complex of cells in which organelles or organs work together to carry out the various processes of life." There is no requirement that it consist of parts that are physically connected to one another.
I don't know how "strict" it is but the dictionary definition of "organism" is "an individual form of life, such as a bacterium, protist, fungus, plant, or animal, composed of a single cell or a complex of cells in which organelles or organs work together to carry out the various processes of life." There is no requirement that it consist of parts that are physically connected to one another.