Nursing Elites

1. Which of the following sentences demonstrates correct use of an apostrophe?

• A. In one version of the story, there are seven fairies invited to the christening, while in another version there are twelve fairies.
• B. Some historians believe that the number twelve represents the shift from a lunar year of thirteen months to a solar year of twelve months.
• C. Other historians claim that the symbolism in the fairy tale is more about nature and the shifting seasons.
• D. Regardless of its meaning, the fairy tale remains popular and has been immortalized in Tchaikovsky's music for the ballet.

Correct answer: C

Rationale: Choice C, 'Other historians claim that the symbolism in the fairy tale is more about nature and the shifting seasons,' demonstrates the correct use of an apostrophe. The apostrophe in 'season’s' indicates the possessive form of 'seasons,' correctly showing ownership by the shifting seasons. Choices A, B, and D do not showcase the correct use of an apostrophe. Choice A incorrectly uses 'fairy’s' instead of 'fairies,' which is the plural form of 'fairy.' Choice B uses 'historians’' which is correct for the possessive form but does not relate to the use of an apostrophe. Choice D correctly uses 'Tchaikovsky's' to indicate possession by Tchaikovsky.

2. When animals eat, insulin is released from the pancreas, stimulating glucose uptake by the liver. When glucose levels drop, the pancreas reduces insulin release. This is an example of which mechanism for maintaining homeostasis?

• A. Negative feedback.
• B. Positive feedback.
• C. Stress response.
• D. Parasympathetic regulation.

Correct answer: A

Rationale: This mechanism is an example of negative feedback. Negative feedback systems work to counteract changes in the body and maintain a stable internal environment (homeostasis). In this case, the release of insulin in response to high glucose levels is followed by a reduction in insulin release when glucose levels drop. This response helps regulate glucose levels and return them to a normal range, demonstrating the characteristic of negative feedback where the body's response opposes the initial stimulus to maintain equilibrium. Positive feedback would amplify the initial change rather than counteract it, so it is not the correct choice. Stress response and parasympathetic regulation are not directly involved in this glucose regulation process, making them incorrect choices.

3. What are the subdivisions of the dorsal cavity, located at the back of the human body?

• A. Cranial and spinal
• B. Dorsal and ventral
• C. Lateral and proximal
• D. Inferior and superior

Correct answer: A

Rationale: The correct answer is A: Cranial and spinal. The dorsal cavity, situated at the back of the human body, is divided into the cranial cavity (housing the brain) and the spinal cavity (housing the spinal cord). Choices B, C, and D are incorrect as they do not represent the correct subdivisions of the dorsal cavity. Option B (Dorsal and ventral) is incorrect as it confuses the dorsal cavity with the dorsal and ventral body planes. Option C (Lateral and proximal) and option D (Inferior and superior) are incorrect as they refer to different anatomical terms that do not apply to the subdivisions of the dorsal cavity.

4. What is the setting of the story in this passage?

• A. In the city
• B. In the countryside
• C. In a jail
• D. In a mental health facility

Correct answer: A

Rationale: The correct setting of the story in the passage is in the city. The passage describes urban elements such as street shops, a nocturnal city with lamps, and scenes of a man walking swiftly and a child being trodden down in the city streets. These details clearly point to an urban setting, making choice A 'In the city' the correct answer. Choices B, C, and D are incorrect because there is no mention or indication of a countryside, jail, or mental health facility setting in the passage.

5. Which element is used in fluorescent lamps and emits ultraviolet light when excited?

• A. Mercury
• B. Neon
• C. Argon
• D. Krypton

Correct answer: A

Rationale: Mercury is the correct element used in fluorescent lamps to emit ultraviolet light when excited. When an electric current passes through the mercury vapor inside the lamp, it generates ultraviolet (UV) light. This UV light then excites the phosphors coated on the inner surface of the lamp, causing them to emit visible light. Neon, argon, and krypton are not commonly used in fluorescent lamps for this purpose. Neon is primarily used in neon signs, argon is used in incandescent and fluorescent bulbs for inertia gas, and krypton is mainly used in certain types of specialized light bulbs for its specific properties.

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