Simple,
DNA: Deoxyribonucleic Acid
RNA: Ribonucleic Acid
First question: “Every system in the body relies on oxygen. From cognition to digestion, effective breathing can not only provide you with a greater sense of mental clarity, it can also help you sleep better, digest food more efficiently, improve your body's immune response, and reduce stress levels.” -google
A "micrometer" is the best unit of measurement for measuring the size of an atom.
Answer: a body of knowledge
A way of learning about the world
An active science
Explanation:
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