What do you call the organ systems that are working together?

A system of organ systems working together is called an organism. It starts with a cell. A group of cells will form a tissue. Then, a group of tissue will for an organ. Having a group of organs, you will have an organ system. Lastly, having a group of organ systems working together make up an organism.

1.)dr. natterson- horowitz came to realize that their isn't much of a difference between animals and humans. just like humans, animals can suffer from illnesses and diseases like breast cancer, self injury, anxiety, and many more. she also discovered how they even treated and performed surgical procedures on animals just as if the animal it self were human. the los angeles zoo called dr. natterson- horowitz because they knew that she was a doctor and that  she would be able to recognize what was wrong with the gorilla. they knew that humans and gorillas were similar, so instead of calling another veterinarian, they called a doctor.

Answersedative or tranquilliser; ( narcotics)