Nursing Elites

1. How does the human eye focus light?

• A. Cornea
• B. Iris
• C. Lens
• D. Retina

Correct answer: C

Rationale: The human eye focuses light by adjusting the shape of its lens. The lens changes shape to allow the eye to focus on objects at different distances, a process known as accommodation. The cornea is the transparent outer covering of the eye that helps to focus light but does not change shape like the lens. The iris controls the size of the pupil to regulate the amount of light entering the eye. The retina is the light-sensitive layer at the back of the eye that receives and processes images but does not adjust the focus of light.

2. Which biome is characterized by cold temperatures, permafrost, and coniferous trees?

• A. Tundra
• B. Desert
• C. Rainforest
• D. Savanna

Correct answer: A

Rationale: A) Tundra: This biome is characterized by cold temperatures, permafrost (permanently frozen subsoil), and vegetation such as mosses, lichens, and coniferous trees like spruce and fir. The tundra is found in high latitudes near the Arctic Circle and high altitudes in mountainous regions. It is a cold and harsh environment where the ground remains frozen for a significant part of the year. The coniferous trees in this biome are adapted to survive in extreme cold conditions. B) Desert: Deserts are characterized by low precipitation levels and high temperatures, with sparse vegetation adapted to arid conditions. C) Rainforest: Rainforests are characterized by high levels of rainfall, warm temperatures, and dense vegetation with a variety of plant and animal species. D) Savanna: Savannas are tropical grasslands with scattered trees and shrubs, characterized by a distinct wet and dry season. They have a different climate pattern compared to the cold temperatures and permafrost found in the tundra biome. In this case, the description of cold temperatures, permafrost, and coniferous trees aligns most closely with the characteristics of the tundra biome, making option A the correct answer.

3. What do large intestines absorb?

• A. Water, sodium, and potassium ions
• B. Proteins and carbohydrates
• C. Water, vitamin K, and bile salts
• D. Vitamins A, D, E, K

Correct answer: C

Rationale: The correct answer is C. The large intestine absorbs water, vitamin K, bile salts, sodium, and chloride ions. It helps in maintaining the body's water and electrolyte balance, and also plays a role in absorbing certain vitamins and nutrients such as vitamin K. Choices A, B, and D are incorrect because proteins, carbohydrates, vitamins A, D, E, and K are primarily absorbed in the small intestine, not the large intestine.

4. Which of the following options contains a possessive pronoun?

• A. If the patient chooses to leave, let them know the right to do so is theirs.
• B. When we support patients in these ways, the hospital's mission is accomplished.
• C. Take personal items to the front desk once you are finished.
• D. This hospital has some problems, no doubt.

Correct answer: A

Rationale: Choice A, 'theirs,' is a possessive pronoun indicating ownership. In this sentence, 'theirs' shows possession by referring to something belonging to the patient. Choices B, C, and D do not contain possessive pronouns. Choice B uses the possessive form 'hospital's,' but it is a possessive noun, not a pronoun. Choice C uses 'personal items,' where 'personal' is an adjective and 'items' is a noun. Choice D does not include any possessive pronouns or possessive nouns.

5. Which of the following would be a primary source for an article on the Battle of Gettysburg?

• A. a letter written by a local farmer who witnessed the battle
• B. a documentary about the battle produced by a local TV station
• C. a novelization of the battle written by the great-grandson of a Union soldier
• D. a history textbook for a college-level course in American history

Correct answer: A

Rationale: A letter written by a local farmer who witnessed the Battle of Gettysburg would be a primary source as it provides direct firsthand accounts and observations from someone who was present during the event. This source would offer valuable insights and perspectives for an article on the Battle of Gettysburg. Choice B, a documentary produced by a local TV station, is a secondary source as it interprets and presents information about the battle rather than providing direct firsthand accounts. Choice C, a novelization of the battle written by the great-grandson of a Union soldier, is also a secondary source as it involves interpretation and creative storytelling rather than direct eyewitness information. Choice D, a history textbook for a college-level course in American history, is a tertiary source that compiles information from various primary and secondary sources rather than presenting original firsthand accounts.

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