Here's why:

* We share characteristics with all living organisms:

* Organization: Humans are made of cells, tissues, organs, and organ systems.

* Metabolism: We take in energy (food), convert it, and release waste.

* Growth: We develop and increase in size from birth.

* Reproduction: We have the ability to create offspring.

* Responsiveness: We react to stimuli in our environment.

* Adaptation: We evolve over time to better survive in our surroundings.

Let me know if you have any other questions about what makes something a living thing!