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Biology 25 Online
OpenStudy (anonymous):

SPONCH, a memory key for the important elements in living things stands for A. selenium, potassium, oxygen, nitrogen, calcium, and hydrogen. B. sulfur, phosphorus, oxygen, nitrogen, carbon, and hydrogen. C. sulfur, potassium, oxygen, nitrogen, carbon, and hydrogen D. selenium, phosphorus, osmium, nitrogen, calcium, and helium.

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