Biology
Biology, 25.05.2021 19:50, neptunesx

What is the original source of energy for most ecosystems? A grass
B) humans
C)the sun
D)heat


What is the original source of energy for most ecosystems? A grass B) humans C)the sun D)heat

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What is the original source of energy for most ecosystems? A grass
B) humans
C)the sun<...

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