Which is the central element for all living things?
A. carbon
B. hydrogen
C. oxygen
D. nitrogen
Answer (2)
The central element for all living things is carbon, which can form a wide variety of complex molecules necessary for life. These carbon-based compounds include essential biomolecules such as proteins and nucleic acids. Other elements like hydrogen, oxygen, and nitrogen are important, but none match carbon's versatility in biological systems. ;
The central element for all living things is carbon due to its ability to form a wide variety of complex molecules necessary for life. Other elements like hydrogen, oxygen, and nitrogen are important, but none match carbon's versatility. Therefore, the correct answer is A. carbon.
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