A) homeostasis
B) steady state
C) cyclosis
D) ecosystem
Correct Answer: A
Solution :
Homeostasis is defined as the tendency to maintain stability or equilibrium within an organism or a social group. It is used by physiologists to mean maintainance of constant or static condition in the internal environment. The regulatory processes are based primarily on the principle of feed back or feedback mechanism or servomechanism. Cytoplasm of eukaryotes is always in perpetual locomotion. It is called cyclosis or streaming movement. Ecosystem is self regulatory and self sustaining structural and functional unit of landscape (biosphere) and consisting of interaction between biotic and abiotic factors.
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