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| Section | Objectives |
|---|---|
| Topic 1: Science | - Basic Chemistry
|
| Topic 2: Verbal Skills | - Reading Comprehension
|
| Topic 3: Mathematics | - Basic Arithmetic
|
As a result, it gives you a feeling of taking the actual test. The NLN NEX desktop practice exam software runs on computers and laptops with a Windows operating system and it requires no internet. Since ActualtestPDF always assists its customers, you can contact our team 24/7 to address your issues.
NEW QUESTION # 21
Reading Comprehension
Passage:
Good nutrition is especially important during childhood because the body is growing rapidly. A diet lacking essential nutrients may result in delayed growth, weakened immunity, and difficulty concentrating in school.
Which consequence of poor nutrition is mentioned in the passage?
Answer: B
Explanation:
The passage explains that childhood nutrition plays a critical role in growth and development. It specifically states that a lack of essential nutrients can lead to delayed growth, weakened immunity, and difficulty concentrating. Option C directly reflects one of the consequences listed in the passage, making it the correct answer. The other options are either the opposite of what is stated or not mentioned at all. NEX reading comprehension questions often test the ability to locate explicit information rather than inferred benefits.
Selecting delayed growth shows careful attention to the details provided in the passage.
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NEW QUESTION # 22
Which action is an example of inequity in healthcare?
Answer: A
Explanation:
Healthcare inequity occurs when certain groups receive fewer resources or lower-quality care than others.
Filtering water for only one segment of a community creates unequal access to a basic health necessity, increasing health risks for those excluded. The other options promote fairness and equal access to care. The NEX Science exam often evaluates understanding of social determinants of health and ethical principles, making option C the clearest example of inequity.
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NEW QUESTION # 23
Which of the following molecules is an electrolyte normally found in the blood?
Answer: D
Explanation:
Electrolytes are charged ions that help regulate nerve function, muscle contraction, and fluid balance in the body. Calcium ions (Ca²#) are an important electrolyte found in the blood and play a crucial role in muscle contraction, blood clotting, and nerve signaling. Water is not an electrolyte because it does not carry a charge.
Iodine is a trace element but not a primary blood electrolyte. Lactase is an enzyme involved in digestion, not an electrolyte. The NEX Science section often includes questions related to human physiology and emphasizes understanding ions and their roles in body function.
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NEW QUESTION # 24
Five samples were taken of a population of four-year-old children.
The table shows the sample sizes and mean heights (cm):
Based on these samples, what is the mean height of the population of four-year-old children?
Answer: B
Explanation:
This question tests weighted averages. Because the sample sizes are different, you cannot simply average the mean heights. Instead, multiply each sample mean by its sample size, add the results, and divide by the total number of children.
Total children = 20 + 20 + 25 + 70 + 20 = 155
Total height = (20×95) + (20×100) + (25×100) + (70×110) + (20×105)
= 1,900 + 2,000 + 2,500 + 7,700 + 2,100
= 16,200
Mean height = 16,200 ÷ 155 # 104.5 cm
Therefore, option A is correct. The NEX exam frequently tests understanding that larger samples should carry more weight when calculating population estimates.
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NEW QUESTION # 25
The graph displays the distribution of the heights of 15-year-old boys in three classrooms.
What is the mean height of the boys in these classrooms?
Answer: C
Explanation:
This question assesses interpretation of a statistical graph and understanding of the mean (average). The mean height represents the weighted average of all data points across the three classrooms. From the plotted distributions, the center of mass of the combined data lies just under 172 cm. Option D, 171.9 cm, most accurately represents the mean height shown by the data. Option A (170.0) is too low, option C (175.0) is too high, and option B (17.0) is clearly incorrect due to unit misinterpretation. On the NEX exam, graph-based questions often test estimation and interpretation rather than exact calculation, especially when raw data values are not individually listed. The correct approach is to identify the overall balance point of the distribution.
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NEW QUESTION # 26
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