Nursing Elites

1. What is the main factor limiting population growth in K-strategists?

• A. Predation
• B. Availability of resources
• C. Competition
• D. Disease

Correct answer: B

Rationale: K-strategists are species with a low reproductive rate that invest more resources in raising fewer offspring. These species typically live in stable environments with limited resources. The main factor limiting population growth in K-strategists is the availability of resources such as food, shelter, and space. When resources are scarce, K-strategists may struggle to find enough to support their population size, leading to reduced reproductive success and population growth. While predation, competition, and disease can also impact population growth, the primary limiting factor for K-strategists is the availability of resources.

2. What kind of error is present in the following sentence? "The project requires researching, writing a report, and presenting findings."

• A. Parallelism
• B. Sentence fragment
• C. Misplaced modifier
• D. Subject-verb agreement

Correct answer: A

Rationale: The correct answer is A: Parallelism. The sentence contains a parallelism error in the list of actions required for the project. In a series or list, all elements should be in the same grammatical form. In this sentence, 'researching' and 'writing' are in gerund form, but 'presenting' is in infinitive form. To ensure parallel structure, all items in the list should be in the same form. Therefore, the corrected version should read, "The project requires researching, writing a report, and presenting findings." Choices B, C, and D are incorrect. There are no sentence fragments, misplaced modifiers, or subject-verb agreement errors in the original sentence.

3. Which of the following is a dependent clause?

• A. Over the course of the day
• B. After I finish my homework
• C. I can't use my mother's car
• D. Through the tunnel

Correct answer: B

Rationale: The correct answer is 'After I finish my homework.' This is a dependent clause because it cannot stand alone as a complete sentence. It relies on the rest of the sentence for context and meaning. Choice A, 'Over the course of the day,' is a prepositional phrase, not a dependent clause. Choice C, 'I can't use my mother's car,' is an independent clause as it can function as a complete sentence on its own. Choice D, 'Through the tunnel,' is also a prepositional phrase and not a dependent clause.

4. What does half-life refer to?

• A. Radioactive intensity to completely disappear
• B. The number of neutrons in a nucleus to double
• C. The number of protons in a nucleus to change
• D. An isotope to decay by half of its initial quantity

Correct answer: D

Rationale: Half-life refers to the time it takes for half of the radioactive atoms in a sample to decay. This means that after one half-life, half of the initial quantity of the radioactive substance will have decayed. Choice A is incorrect because radioactive intensity doesn't completely disappear during half-life. Choice B is incorrect as half-life doesn't refer to the number of neutrons doubling. Choice C is incorrect as half-life doesn't relate to the number of protons changing.

5. Robert plans to drive 1,800 miles. His car gets 30 miles per gallon, and his tank holds 12 gallons. How many tanks of gas will he need for the trip?

• A. 4 tanks
• B. 5 tanks
• C. 6 tanks
• D. 7 tanks

Correct answer: B

Rationale: To calculate how many gallons of gas Robert needs for the 1,800-mile trip, divide the total distance by the car's mileage per gallon: 1,800 miles ÷ 30 mpg = 60 gallons. Since his tank holds 12 gallons, Robert will need 60 gallons ÷ 12 gallons per tank = 5 tanks of gas for the trip. Choice A (4 tanks), Choice C (6 tanks), and Choice D (7 tanks) are incorrect as they do not correctly calculate the number of tanks needed based on the car's mileage and tank capacity.

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