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Which of the following statements is correct regarding DNA and RNA?
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Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion
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The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes
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What is the problem in this article? what solution does the article propose?
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Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass
Answers: 2
Which of the following statements is correct regarding DNA and RNA?...
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