Answer:
A scientific question is usually guided by a hypothesis which can lead to additional questing about the phenomenon (A).
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Explanation:
<span>The true statement regarding DNA is A) contains deoxyribose sugar. DNA (deoxyribonucleic acid) consists of two strands of nucleotides joined by hydrogen bonds. Each nucleotide contains nucleobase (adenine, thymine, cytosine, and guanine), a sugar deoxyribose, and a phosphate group. The fact that it contains the deoxyribose sugar was the reason the molecule is called deoxyribonucleic acid or DNA.</span>
69 divided by 1/4 as a fraction
Nitrogen 14 and nitrogen 15 differ because nitrogen 14 has 7 neurons and 7 protons. Nitrogen 15 has 8 neurons and 7 protons.
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