Monday, August 20, 2012

STPM Biology - chapter 9: Revision essay question 3

3. State the importance of homeostasis.

Answer


-Life of the organisms becomes less dependent on the extenal enviroment because the organisms
 is able to control the changes in its internal enviroment to compensate for the changes in the
 external condition.
    -Homeostasis ensures an optimum internal enviroment for the cell to function, the organisms to
 survive and reproduce efficiently.
    -Homeostasis enable biological systems to function efficiently and smoothly with minimum
 wastage of energy.
    -Organisms can live in a wider range of habitats because the organisms can live in areas with
 variable condition.
    -Organisms can increase or decrease its metabolic rate to suit its requirements.

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