Plants can capture 1,000 units of energy from the sun and use approximately 900 units of energy for their own use. The insects that eat the plants receive only 10% or 100 units of energy originally available from the sun. Then, the mouse receives only 10% or 10 units of energy originally available from the sun from the insects. Finally, the fox only receives 0.1% or 1 unit of the original energy captured from the sun from the mouse. Evaluate the living system represented by the energy pyramid and determine if it obeys the law of conservation of energy. Explain your reasoning.