Nursing Elites

1. Which of the following sources would be a good starting point that provides the most accurate information for a research project on ancient Persian culture?

• A. The Wikipedia entry on 'Persian Culture'
• B. 'All Cool Persian Stuff,' a blog written by a scientist
• C. 'An Overview of Persian Society,' a book written by a historian
• D. 'Uncovering the Secrets of Persia,' a two-page magazine article about lost temples

Correct answer: C

Rationale: A book written by a historian, such as 'An Overview of Persian Society,' would provide a well-researched and reliable source of information on ancient Persian culture. Choice A, the Wikipedia entry, may contain inaccurate or biased information as it can be edited by anyone. Choice B, a blog by a scientist, may not provide scholarly or comprehensive information on ancient Persian culture. Choice D, a magazine article about lost temples, does not focus on Persian culture as a whole, making it less relevant for a research project specifically on ancient Persian culture.

2. Which property of a substance refers to its ability to undergo a chemical change and form new substances?

• A. Density
• B. Mass
• C. Reactivity
• D. Volume

Correct answer: C

Rationale: Reactivity is the property of a substance that describes its ability to undergo a chemical change and form new substances through chemical reactions. Density, mass, and volume are physical properties of a substance and do not directly relate to its ability to undergo chemical changes. Density is the mass of a substance per unit volume, mass is the amount of matter present, and volume is the amount of space occupied by the substance. Reactivity specifically deals with how likely a substance is to engage in chemical reactions. Therefore, the correct answer is C - Reactivity.

3. Which phrase best describes the purpose of nonfiction writing?

• A. To inform, entertain, or persuade readers
• B. To entertain, then to inform
• C. To convince readers they're wrong about the author's subject
• D. None of the above

Correct answer: A

Rationale: The correct answer is A: 'To inform, entertain, or persuade readers.' Nonfiction writing aims to provide factual information (inform), engage the audience (entertain), or influence their opinions (persuade). Choice B is incorrect because informing usually takes precedence over entertaining in nonfiction. Choice C is incorrect as the primary goal is not to convince readers they're wrong but rather to present information or arguments. Choice D is incorrect as there are clear purposes for nonfiction writing.

4. What is the fatty substance that coats axons to insulate, protect, and speed up impulses?

• A. Myelin
• B. Dendrite
• C. Neuron
• D. Synapse

Correct answer: A

Rationale: The correct answer is 'Myelin.' Myelin is a fatty substance that functions as an insulator for axons, providing protection and enhancing the speed of electrical impulses along neurons. This insulation is essential for ensuring efficient and rapid communication within the nervous system. Choices B, C, and D are incorrect. Dendrites are branched extensions of a neuron that receive signals, neurons are the basic building blocks of the nervous system that transmit information, and synapses are the junctions between neurons where communication occurs.

5. Convert 3,540 liters to milliliters (mL).

• A. 354,000 mL
• B. 3,540,000 mL
• C. 35,400 mL
• D. 35,400,000 mL

Correct answer: B

Rationale: To convert liters to milliliters, you need to multiply by 1,000 because there are 1,000 milliliters in 1 liter. Therefore, 3,540 liters × 1,000 = 3,540,000 milliliters. Choices A, C, and D are incorrect because they do not correctly convert liters to milliliters. A, C, and D are off by a factor of 1,000, as they do not account for the conversion factor between liters and milliliters.

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