The flow of energy is always one way. If we start at the sun and the sun’s energy moves to a plant, then the plant cannot transfer that energy back into the sun. The flow of energy is always controlled bc there is always a visible path it takes.
<span>D. take energy from the sun and make it usable for living things.
Producers are plants. Plants make energy from the sun through the process of photosynthesis and other living things (such as animals) eat the grass (known as grazing)
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The lining of the heart is the pericardium.