Here's why:
* Organisms are living things. Dogs are definitely alive! They breathe, eat, grow, reproduce, and respond to their environment.
* Organisms are made up of cells. Dogs are made up of trillions of cells working together.
* Organisms have a complex organization. Dogs have systems like digestive, circulatory, nervous, and skeletal systems that work together to keep them functioning.
So, the premise of your question is incorrect. Dogs are most definitely organisms!