What is homeostasis?

A. The ability to maintain proper internal fluid balance.
B. the ability to maintain a steady internal temperature.
C. the ability to regulated thermometers.

D. the ability to change the temperature of the environment.

The correct answer is A and B. Homeostasis is the ability of an organism to maintain stable internal conditions, such as proper fluid balance and steady internal temperature, regardless of external environmental changes. It involves processes like regulation of body temperature, blood pressure, pH levels, and nutrient levels. It does not involve the ability to regulate thermometers or change the temperature of the environment.