What phrase best describes homeostasis

Maintaining the essential internal parameters relatively constant is the phrase that best describes the process of homeostasis.

Homeostasis refers to the condition of constant internal conditions sustained by the living species. This vigorous condition of equilibrium refers to the ideal working for the species and incorporates various variables like the temperature of the body and balance of fluid, being kept within certain pre-limits, that is, within the homeostatic range.  

the transfer of energy between two molecules spaced just nanometers apart plays a key role in many technologies, including photovoltaics, quantum information systems, lighting, and sensors, as well as in biophysics to measure nanometer distances and in photosynthesis. but an open question in this area is what effect, if any, the surrounding photonic environment has on this nanoscale energy transfer. by designing and performing a carefully controlled experiment to answer this question, scientists have settled the debate and found clues to improving the efficiency of many of the technologies that rely on this process.

explanation:

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.