Here's why:
* Life processes include things like:
* Growth: Increasing in size and complexity
* Reproduction: Creating offspring
* Metabolism: Chemical reactions that sustain life
* Response to stimuli: Reacting to changes in the environment
* Homeostasis: Maintaining a stable internal environment
* Organization: Being made up of cells or having a specific structure
* By itself means that the organism can carry out these processes independently, without relying on other organisms.
Therefore, a living organism is a self-sustaining entity that exhibits all the characteristics of life.