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In all ecosystems energy is eventually lost to the environment via ________.

A. heat resulting from respiration
B. radiation and reflection of light
C. photosynthesis
D. matter
E. trophic levels

User Estani
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A. Heat resulting from respiration
The food an organism eats is used for maintenance and growth; however, most of it is lost as heat to the surrounding and not transferred to the next level.

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