homestyler in the regulation of an organism's internal environment to maintain conditions suitable for life

The question is incomplete as the nature of question is not clear, however the correct question is as follows:

homeostasis is the regulation of an organism's internal environment to maintain conditions suitable for life. homeostasis requires

The correct answer is -  Homeostasis requires balances between many factors in the body such as the body temperature, chemical and physical balance, pH etc

Explanation:

Homeostasis is the ability of an organism to regulate or maintain its internal environment or conditions according the condition require for survival of organism or cell.

It is the characteristic feature of living organisms and life to adapt or maintain the equilibrium of cell's chemical, physical environment.

Thus, the correct answer is - Homeostasis requires balances between many factors in the body such as the body temperature, chemical and physical balance, pH etc

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".