Element Abundance by Weight in Living Organisms
Which of the following lists the elements iron, copper, phosphorus, oxygen, and hydrogen in order of their abundance by weight in living organisms, from most abundant to least abundant?
A
Oxygen, phosphorus, hydrogen, iron, copper
B
Hydrogen, oxygen, iron, phosphorus, copper
C
Oxygen, hydrogen, phosphorus, iron, copper
D
Oxygen, hydrogen, phosphorus, copper, iron
E
Hydrogen, oxygen, phosphorus, copper, iron
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