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borteleto borteleto
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Posts: 2477
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6 years ago
The four most common elements found in living organisms are ________.
A) nitrogen, oxygen, phosphorus, and carbon
B) carbon, oxygen, nitrogen, and hydrogen
C) carbon, oxygen, potassium, and calcium
D) oxygen, calcium, hydrogen, and carbon
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DeanaRayDeanaRay
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6 years ago
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