Which of the following statements is representative of the second law of thermodynamics?
A) Cells require a constant input of energy to maintain their high level of organization.
B) Conversion of energy from one form to another is always accompanied by some gain of free energy.
C) Every energy transformation by a cell decreases the entropy of the universe.
D) Without an input of energy, organisms would tend toward decreasing entropy.
Answer: A) Cells require a constant input of energy to maintain their high level of organization.