Which characteristic of life distinguishes a fire and a flowering plant?

The use of energy is a life characteristic that distinguishes fire from a flowering plant

Explanation:

When fire is put on, it makes use of oxygen and releases carbon dioxide and other gases. Burning of fire makes use of heat energy

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme