Biology, 16.12.2020 19:20 leylaanddade
9
Students are given data from an investigation that identified some of the chemical elements present in four
different samples.
Elements Present in Samples
Sample
1
2
Elements
Hydrogen, phosphorus, and nitrogen
Aluminum, silicon, and copper
Calcium, potassium, and nitrogen
Iron, oxygen, and magnesium
3
4
Which sample was most likely DNA?
A
Sample 1
B
Sample 2
С
Sample 3
D
Sample 4
Answers: 3
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