Fire grows and develops, uses energy, and it changes over time. How do you know that it is NOT a living organism?
Fire does not contain cells or reproduce.
There are six main characteristics that every organism exhibits:
- Contains cells
- Grows and develops
- Adapts to its environment
- Uses energy
- Responds to stimuli and maintains homeostasis (internal stability)
Although you could argue to some extent that fire has the ability to grow, change, consume energy, and respond to stimuli, it certainly does not contain cells or reproduce.