Ecologists have found that

Question

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Ecologists have found that energy flows one way through ecosystems and requires external input, meaning that it cannot be recycled or reused. This principle is known as the Second Law of Thermodynamics and is a fundamental concept in ecology. While inorganic elements and energy can be recycled within ecosystems, the overall flow of energy is unidirectional. It is unlikely that any ecosystem could capture all the photosynthetic energy absorbed as molecules of glucose (choice C), as energy is always lost as heat according to the laws of thermodynamics. Life as we know it does match the energy laws of physics (choice A) and ecology can be explained using principles from chemistry and physics (choice B).

Ecologists Have Found That