Biology
University Of California - Davis
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Test Bank for Campbell Biology Concepts and Connections; Correct 100% Q&A Graded A+; 7th Edition
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---21noviembre 20222022/2023A+
- The four most common elements in living organisms are 
1) 
_______ 
A) 
C, H, O, N. 
B) 
C, H, O, Na. 
C) 
C, N, O, Na. 
D) 
C, H, O, Fe. 
2) 
Which of the following is a trace element in the human body? 
2) 
_______ 
A) 
nitrogen 
B) 
hydrogen 
C) 
oxygen 
D) 
zinc 
3) 
Which of the following statements regarding matter is false? 
3) 
_______ 
A) 
All matter exists in the form of compounds. 
B) 
All life is composed of matter. 
C) 
All matter has mass. 
D) 
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All matter is composed...
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