Answer:
nucleotides
The DNA molecule is a polymer of nucleotides. Each nucleotide is composed of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group.
Explanation:
What are the two primary sources of energy for the earth
The reaction between allergens and IgE antibodies causes the release of chemical substances such as
histamine, leukotrienes and prostaglandins
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This is obvious but the correct answer is B. Earth
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