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| Section | Objectives |
|---|---|
| Topic 1: Verbal Skills | - Language Usage
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| Topic 2: Science | - Biology
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| Topic 3: Mathematics | - Word Problems
|
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NEW QUESTION # 16
Animal cells contain mitochondria, while plant cells contain both mitochondria and chloroplasts. What does that tell us about their functions?
Answer: D
Explanation:
Mitochondria are responsible for cellular respiration, which occurs in both plant and animal cells.
Chloroplasts carry out photosynthesis and are found only in plant cells. Therefore, only plants can perform photosynthesis, while both plants and animals can perform cellular respiration. This distinction is a core concept in cell biology and is frequently tested on the NEX Science exam.
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NEW QUESTION # 17
Given that military time uses a 24-hour clock, what time isof a day past 9:15 a.m. in military time?
Answer: A
Explanation:
This question combines fractions of time and military time. One full day is 24 hours. One-third of a day equals 24 ÷ 3 = 8 hours. Add 8 hours to 9:15 a.m. Doing so results in 5:15 p.m. In military time, p.m. hours are converted by adding 12 to the hour: 5:15 p.m. becomes 17:15. Therefore, option A is correct. Option C would represent noon, and option D is early morning. The NEX often tests time interpretation, so remembering that military time does not use "a.m." or "p.m." is critical.
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NEW QUESTION # 18
Review the scatter plot of hours students studied for a test and their results.
What can you conclude from the graph?
Answer: C
Explanation:
This question tests interpretation of scatter plots and correlation. In the graph, the horizontal axis represents hours studied, and the vertical axis represents test scores. As the points move from left to right (indicating more hours studied), the points also tend to move upward (indicating higher test scores). This shows a positive relationship between the two variables. While not every point follows a perfect line, the overall trend clearly indicates that students who studied more hours generally achieved higher test scores. Option B correctly describes this positive correlation. Option A is incorrect because scores are not highest when no studying occurs. Option C is incorrect because there is a visible relationship. Option D describes a negative relationship, which is not shown. On the NEX exam, scatter plots are often used to test understanding of trends rather than exact values, so identifying the overall direction of the data is key.
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NEW QUESTION # 19
The first recovery phase for a patient after surgery is walking for 12 weeks. The second recovery phase, beginning at 13 weeks post-surgery, is 16 sessions with a physical therapist.
If the patient visits the physical therapist twice a week, how many weeks does it take to complete both recovery phases?
Answer: C
Explanation:
This problem combines time duration and rate, commonly tested on the NEX. The first recovery phase lasts
12 weeks. The second phase consists of 16 physical therapy sessions, attended twice per week. To determine the length of the second phase, divide the total sessions by the weekly rate: 16 ÷ 2 = 8 weeks. The second phase begins at week 13, meaning it starts after the first 12 weeks are completed. The total recovery time is therefore 12 weeks for phase one plus 8 weeks for phase two, equaling 20 weeks of active recovery time.
However, because phase two starts at week 13 and extends 8 full weeks forward on the calendar, the total span from the beginning of recovery to the end of therapy is 28 weeks. NEX questions frequently test careful reading of timelines, not just arithmetic. Option B correctly reflects the full duration from start to finish.
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NEW QUESTION # 20
A healthcare provider recommends that a patient take 200 milligrams (mg) of a pain reliever every 4 hours.
How many grams of the pain reliever should the patient have taken after 8 hours if the recommendation was followed?
(Given 1,000 mg = 1 gram.)
Answer: D
Explanation:
This is a medication dosage problem, a critical area on the NEX exam. First determine how many doses are taken in 8 hours. Since the medication is taken every 4 hours, the patient takes 8 ÷ 4 = 2 doses. Each dose is
200 mg, so the total amount taken is 200 × 2 = 400 mg. Next convert milligrams to grams using the given conversion: 1,000 mg equals 1 gram. Divide 400 ÷ 1,000 = 0.4 grams. Therefore, the correct answer is D.
Option B represents only one dose. Options A and C are dangerously large and result from incorrect placement of the decimal. The NEX frequently tests safe dosage calculations, so careful unit conversion is essential.
NEW QUESTION # 21
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