Final answer:
Cell organelles maintain a constant internal environment through their functions, helping the cell maintain homeostasis.
Step-by-step explanation:
Cell organelles maintain a constant internal environment through their functions. Homeostasis refers to the balance or equilibrium within a cell, and it is the organism's ability to keep a constant internal environment. Cell organelles, such as the mitochondria, maintain the energy balance in the cell, while the endoplasmic reticulum helps regulate the synthesis and transport of proteins. These organelles, along with others like the nucleus and Golgi apparatus, work together to ensure the cell maintains homeostasis.