The Unit 'Understanding organisms' is not found here, but an organism is a biological system composed of cells.
An organism is a living entity that is defined by the presence of cells, which are the basic structural unit of life.
Organisms have the ability to respond to external stimuli, perform metabolic activities and exhibit a internal state of equilibrium (homeostasis).
Organisms can be composed of single cells (e.g., bacteria, protists) or many cells (e.g., plants and animals).
In conclusion, the Unit 'Understanding organisms' is not found here, but an organism is a biological system composed of cells.
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