Solved

Which Elements Account for More Than 97% of the Weight

Question 59

Multiple Choice

Which elements account for more than 97% of the weight of most organisms?

A) C,H,N,Mg,O,S
B) C,H,N,O,P,S
C) C,H,N
D) Fe,C,H,O,P
E) Ca²+,K+,Na+,Mg²+,Cl-

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