Nursing Elites

1. The cost, in dollars, of shipping x computers to California for sale is 3000 + 100x. The amount received when selling these computers is 400x dollars. What is the least number of computers that must be shipped and sold so that the amount received is at least equal to the shipping cost?

• A. 10
• B. 15
• C. 20
• D. 25

Correct answer: B

Rationale: To find the least number of computers that must be shipped and sold so that the amount received is at least equal to the shipping cost, we set up the inequality 400x >= 3000 + 100x. Simplifying this inequality gives 300x >= 3000, and dividing by 300 results in x >= 10. Therefore, at least 15 computers must be shipped and sold to cover the shipping cost, making choice B the correct answer. Choices A, C, and D are incorrect as they represent numbers less than 15, which would not cover the shipping cost.

2. Identify the antonym of the word 'pensive':

• A. joyous
• B. thoughtful
• C. curious
• D. introspective

Correct answer: A

Rationale: The correct answer is A, 'joyous.' 'Pensive' means engaged in deep or serious thought, often with a hint of sadness. The antonym 'joyous' represents a state of great happiness and delight, contrasting with the contemplative and somewhat melancholic nature of being pensive. Choices B, C, and D are incorrect. 'Thoughtful' is not an antonym but rather a synonym, meaning showing consideration or careful thought. 'Curious' and 'introspective' are also not antonyms; 'curious' means eager to know or learn something, and 'introspective' means examining one's own thoughts and feelings.

3. Two mice are both heterozygous for two traits: white fur (Ww) and short fur (Ss). Their offspring are most likely to have which of the following genotypes for these traits?

• A. wwss
• B. WWSS
• C. WwSs
• D. WWSs

Correct answer: C

Rationale: When two mice that are heterozygous for white fur (Ww) and short fur (Ss) mate, they can produce offspring with different combinations of the two traits. The Punnett square for this cross shows that the most likely genotype for the offspring is WwSs. In this case, each offspring receives one allele for white fur (W) and one for short fur (S) from each parent, resulting in a heterozygous genotype for both traits. Choice A (wwss) is incorrect as it represents a homozygous recessive genotype for both traits. Choice B (WWSS) is also incorrect as it represents a homozygous dominant genotype for both traits. Choice D (WWSs) is incorrect as it represents a genotype where one trait is homozygous dominant (W) and the other is heterozygous (S), which is not the most likely outcome based on the given parental genotypes.

4. Which of the following versions of the sentence is written correctly?

• A. Because she wanted to reduce unnecessary waste, Cicily decided to have the television repaired instead of buying a new one.
• B. Cicily decided to have the television repaired because she wanted to reduce unnecessary waste instead of buying a new one.
• C. Cicily decided to have the television repaired because she wanted to reduce unnecessary waste, instead of buying a new one.
• D. Because Cicily decided to have the television repaired instead of buying a new one, she wanted to reduce unnecessary waste.

Correct answer: A

Rationale: Option A is the correct version of the sentence. It is written in a clear and grammatically correct way. The conjunction 'because' is correctly placed to show the reason for Cicily's decision, and the structure of the sentence flows logically. Choices B, C, and D have issues with sentence structure, placement of conjunctions, or unnecessary commas, making them grammatically incorrect. Choice B places 'because' in an awkward position, disrupting the flow of the sentence. Choice C introduces a comma after 'wanted to reduce unnecessary waste' unnecessarily, causing a punctuation error. Choice D shifts the focus of the sentence by placing 'she wanted to reduce unnecessary waste' at the end, making the sentence less coherent and grammatically incorrect.

5. Which neurotransmitter is involved in muscle movement?

• A. Dopamine
• B. Acetylcholine
• C. Serotonin
• D. GABA

Correct answer: B

Rationale: Acetylcholine is the neurotransmitter responsible for muscle movement. It is released from motor neurons at the neuromuscular junction and binds to receptors on muscle fibers, initiating muscle contraction. Dopamine, serotonin, and GABA serve different functions in the brain and body, such as regulating mood, sleep, and inhibitory signaling, respectively. Therefore, choices A, C, and D are incorrect in the context of muscle movement.

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