Home Biology Organisms and Populations Organism and its Enviornment During the course of million of years of the…
Biology Organisms and Populations Organism and its Enviornment Single Correct MCQ
Published on: August 13, 2026

During the course of million of years of their existence most species should have evolved a relatively ...

A
... internal environment (within the body of organisms). This internal nvironment would permit all biochemical reactions and physiological functions to proceed with .. , –constant, –constant, –variable, –constant,
B
... efficiency and therefore, increase the overall fitness of the species in terms of ... and –minimal, –maximal, –minimal, –versatile,
C
... . Choose the correct option for . –thermoregulation –homeostasis –osmoregulation –homeostasis

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The correct answer is:
B

Most organisms maintain a constant internal environment so that biochemical reactions work with maximum efficiency, improving survival (homeostasis).

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