Nitrogen is an essential nutrient for optimal plant growth because it is used to build

A. DNA.
B. protein.
C. mitochondria.
D. nucleic acids.
E. All of these are correct.


Answer: E

Biology & Microbiology

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When the DNA of a bacterial phage is integrated into a host bacterial cell, it is considered to be _________.

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Which of the following statements about isotopes in living systems is false? a. Radiation can be used to create visual images

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