Nursing Elites

1. After graduating from Proviso East High School in 1966, he later went on to study law at Triton Junior College. Which of these sentences, if any, should begin a new paragraph?

• A. There should be no new paragraph.
• B. After graduating from Proviso East High School in 1966, he later went on to study law at Triton Junior College.
• C. While studying at Triton, Hampton joined and became a leader of the National Association for the Advancement of Colored People (NAACP).
• D. As a result of his leadership, the NAACP gained more than 500 members.

Correct answer: B

Rationale: The sentence 'After graduating from Proviso East High School in 1966, he later went on to study law at Triton Junior College' marks a shift in the narrative as it introduces a new stage in the individual's journey. This change in focus warrants starting a new paragraph to clearly separate different events or developments in the person's life. Choices C and D are related to Hampton's actions during or after his time at Triton College but do not necessitate a new paragraph. Choice A is incorrect because the sentence provided is a suitable candidate for starting a new paragraph due to the change in the main topic it introduces.

2. Ibexes are wild mountain goats that live in the Alps and the mountains of Asia. They climb very steep slopes. They are sure-footed and can easily leap from rock to rock. In winter, they replace their summer coat with thicker hair and a wooly undercoat.

• A. Ibexes are wild mountain goats that are very agile.
• B. Ibexes are found in lowlands and highlands.
• C. Ibexes like to climb steep slopes in the mountains.
• D. Ibexes have adapted to life in the mountains.

Correct answer: D

Rationale: The correct answer is 'Ibexes have adapted to life in the mountains' because it serves as a concluding sentence that summarizes the content of the paragraph. This statement encapsulates the information provided about ibexes living in the Alps and Asian mountains, climbing steep slopes, being sure-footed, and changing their coats in winter. Choice A is incorrect because the text does not specifically mention their agility. Choice B is incorrect as the text only mentions the Alps and Asian mountains, not lowlands. Choice C is also incorrect as the text mentions ibexes climbing steep slopes, not just liking to do so.

3. What is the difference between DNA and RNA?

• A. Both are double-stranded.
• B. DNA contains deoxyribose sugar, while RNA contains ribose sugar.
• C. RNA contains the nitrogenous base uracil, while DNA contains thymine.
• D. Both are identical molecules.

Correct answer: B

Rationale: A) Incorrect. DNA is double-stranded, but RNA is typically single-stranded. B) Correct. DNA contains deoxyribose sugar, which lacks an oxygen atom on the 2' carbon of the sugar ring, while RNA contains ribose sugar, which has an additional hydroxyl group on the 2' carbon. C) Incorrect. RNA contains the nitrogenous base uracil, while DNA contains thymine. D) Incorrect. DNA and RNA have distinct structures and functions, so they are not identical molecules.

4. Which of the following basic mechanisms of evolution is described as the process where organisms with an advantageous trait survive more often and produce more offspring than organisms without the advantageous trait?

• A. gene flow
• B. genetic drift
• C. mutation
• D. natural selection

Correct answer: D

Rationale: Natural selection is the basic mechanism of evolution that explains how organisms with advantageous traits are more likely to survive and reproduce in a given environment. This leads to the passing on of these favorable traits to their offspring, causing these traits to become more common in the population over time, resulting in evolutionary change. Natural selection is driven by environmental pressures that support the survival and reproduction of individuals with specific traits. Gene flow refers to the movement of genes between populations, genetic drift is the change in allele frequencies due to random events, and mutation is the source of genetic variation but is not the process by which advantageous traits become more prevalent in a population.

5. Which of the following describes the path through which air moves during inhalation?

• A. mouth/nose > pharynx > larynx > trachea > bronchi > bronchioles > alveoli
• B. bronchioles > alveoli > bronchi > larynx > pharynx > lungs
• C. mouth/nose > bronchi > bronchioles > alveoli > lungs > trachea
• D. alveoli > bronchioles > lungs > bronchi > trachea > larynx > pharynx > mouth/nose

Correct answer: A

Rationale: The correct path through which air moves during inhalation is from the mouth/nose > pharynx > larynx > trachea > bronchi > bronchioles > alveoli. This sequence accurately represents the typical route air takes as it travels from the external environment into the lungs to facilitate gas exchange in the alveoli. Choice B is incorrect as it reverses the order of bronchioles and alveoli. Choice C is incorrect as it starts with mouth/nose but then incorrectly lists lungs before trachea. Choice D is incorrect as it reverses the entire sequence of the respiratory pathway, starting with alveoli instead of mouth/nose.

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