Homeostasis is
A) the mechanism by which organisms acquire nutrients from the environment.
B) the maintenance of a narrow range of internal conditions.
C) the sensory system of an organism.
D) the mechanical movement of molecules from one cellular location to another.
E) the maintenance of extracellular fluids.

Question

Quizplus · Accepted Answer

Homeostasis is the process by which an organism maintains a relatively stable internal environment, despite fluctuations in the external environment. This is achieved through the regulation of various physiological processes such as temperature, pH, water balance, and nutrient levels. Thus, option B is the correct choice. Option A is incorrect because the mechanism by which organisms acquire nutrients is called nutrition. Option C is incorrect because the sensory system is responsible for detecting changes in the internal and external environment. Option D is incorrect because mechanical movement of molecules is not relevant to homeostasis. Option E is incorrect because maintenance of extracellular fluids is only a part of the broader concept of homeostasis.

Homeostasis Is