As energy flows in ecosystems, it can be said to
A)cycle, as in a round trip
B)flow from high-quality to low-quality energy in a one-way fashion
C)either flow one way or cycle, depending on the type of energy involved
D)flow in a two-directional fashion
E)none of these answers

Question

Quizplus · Accepted Answer

Energy flows from high-quality to low-quality energy in a one-way fashion in ecosystems, as the second law of thermodynamics states that energy always flows spontaneously from areas of higher concentration to areas of lower concentration. Therefore, energy cannot flow back from low-quality to high-quality energy without external input.

As Energy Flows in Ecosystems, It Can Be Said to