Enzymes function most efficiently at the temperature of typical cell which is about 37 degrees celsius. increases or decreases in temperature can significantly lower the reaction rate. what does this suggest about the importance of temperature-regulating mechanisms in organisms? explain?

This suggests that the smallest amount of change in the temperature  of the body it will affect the enzymes which are needed for digestion. Therefore if the temperature of the body doesnt  return to its normal state this could affect the cells metabolism and you wouldnt have energy due to a decrease in the reaction rate of the enzymes which in return decrease your ablity to completely digest your food meaning no energy. Therefore its HIGHLY important for the body to regulate the  changes inside the body.

The ability to regulate internal changes of the body is called Homeostasis.