posted by Paul on .
Life is sometimes described as a constant struggle against the second law of thermodynamics. How do organisms succeed in this struggle without violating the second law?
As organisms grow and develop, they maintain they maintain a high level of order and do not appear to be more disorganized. However organisms maintain their degree of order over time only with the constant input of energy from their surroundings. That is why plants most photosynthesis and animals should eat. Although the order within organisms may tend to increase temporarily, the total entropy of the universe (organisms plus surroundings) always increases over time.