I need a logical justification for this question??? Why does a living thing have to perform these 8 functions ( respiration, regulation, reproduction, growth, excretion, nutrition, transport, and synthesis) in order to be considered living? Why aren’t all things considered living? Basically does this make sense: LOGIC PROOF 1: All living things are made up of cells. All cells are made up of atoms. Thus all living things are made up of atoms. LOGIC PROOF 2 (in conjunction with LOGIC PROOF 1): All things in the Universe are made up of atoms. If all things living are made of atoms and all things in the Universe are made atoms, then all things in the Universe are living.