Nursing Elites

1. If a tree grows an average of 4.2 inches in a day, what is the rate of change in its height per month? Assume a month is 30 days.

• A. 0.14 inches per month
• B. 4.2 inches per month
• C. 34.2 inches per month
• D. 126 inches per month

Correct answer: D

Rationale: The tree grows at an average rate of 4.2 inches per day. To find the rate of change per month, multiply the daily growth rate by the number of days in a month (30 days): 4.2 inches/day × 30 days = 126 inches per month. Therefore, the rate of change in the tree's height is 126 inches per month, making option D the correct answer. Option A is incorrect because it miscalculates the rate based on daily growth. Option B is incorrect as it doesn't account for the total days in a month. Option C is incorrect as it overestimates the monthly growth rate.

2. Why do cicadas make a buzzing sound?

• A. To orient via echolocation
• B. To attract a mate
• C. To locate a food source
• D. To ward off predators

Correct answer: B

Rationale: Cicadas make a buzzing sound primarily to attract a mate. This sound is a mating call produced by the males to attract females for reproduction. While echolocation is used by some animals like bats for navigation, cicadas do not use buzzing for orientation. Buzzing is not related to locating a food source or warding off predators in the case of cicadas.

3. Which of the following is a primary source?

• A. A critic's summary of a book on Abraham Lincoln.
• B. A peer-reviewed scientific journal's table of contents.
• C. A gene splicing study report with data.
• D. A news article quoting research into curing cancer.

Correct answer: C

Rationale: The correct answer is C. A gene splicing study report with data is a primary source because it provides original research findings. In contrast, choice A is a secondary source as it involves a critic's interpretation of a book. Choice B, the table of contents of a peer-reviewed scientific journal, is not a primary source but a tertiary source, providing a summary of articles. Choice D, a news article quoting research, is a secondary source that presents information based on primary sources rather than the original research itself.

4. Which of the following systems does not include a transportation network throughout the body?

• A. Cardiovascular system
• B. Endocrine system
• C. Immune system
• D. Nervous system

Correct answer: B

Rationale: The endocrine system does not include a transportation network throughout the body. While the cardiovascular system transports blood, oxygen, and nutrients, the immune system has lymphatic vessels for immune cell transportation, and the nervous system transmits signals via neurons. In contrast, the endocrine system coordinates bodily functions by releasing hormones directly into the bloodstream, which then act on target organs or tissues. This delivery mechanism is different from the continuous transportation networks found in the other systems listed, making the endocrine system the correct choice for this question.

5. Which of the following is a primary source that would contain the most useful information for a research paper on the effects different family structures have on children?

• A. An article that includes quotes from individuals who grew up in single-parent homes
• B. An autobiography written by someone whose parents are divorced
• C. A study that examines the mental health of children from various family structures
• D. A census that reflects the number of households with a nuclear family structure

Correct answer: C

Rationale: A study that examines the mental health of children from various family structures would provide the most comprehensive and relevant information for a research paper on the effects different family structures have on children. This type of study would offer insights based on empirical data and analysis, making it a reliable primary source. Choices A, B, and D might provide valuable perspectives, but a research study specifically focusing on the mental health outcomes of children from different family structures would offer more in-depth and specific information for the research paper.

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