An organism is a complete living being that can carry out all the processes necessary for life, such as:
* Nutrition: Obtaining and processing food
* Respiration: Taking in oxygen and releasing carbon dioxide
* Circulation: Transporting nutrients and waste
* Excretion: Removing waste products
* Movement: Changing position or location
* Reproduction: Creating new organisms
* Growth: Increasing in size and complexity
* Response: Reacting to stimuli in the environment
Each organ system contributes its own unique function, and their coordinated efforts make life possible.
