Which refers to the maintenance of a stable internal environment despite changing external conditions?
a. differentiation
b. self-renewal
c. homeostasis
d. specialization

The right option is; c. homeostasis

Homeostasis is the ability of a biological system or a body to adjust its internal environment to maintain a stable equilibrium when dealing with environmental changes. pH balance, temperature control, and respiration are examples of homeostatic processes in the body. Homeostasis occurs in human when an individual shiver to produce heat during winter season.

c. homeostasis

Explanation:

Homeostasis is the state of maintenance of internal environment by the body so as to maintain a dynamic state of equilibrium with the changes that occurring in the external environment. Homeostasis can be maintained by many variable such as by maintaining the body temperature, pH, blood sugar level, concentration of the ions such as sodium, potassium and calcium. The homeostasis facilitates the survival of the organism in adverse environmental conditions.