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| Section | Objectives |
|---|---|
| Verbal Skills | - Reading Comprehension
|
| Mathematics | - Word Problems
|
| Science | - Biology
|
>> NEX Trustworthy Exam Content <<
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NEW QUESTION # 34
Reading Comprehension
Passage:
Medical research relies on controlled experiments to test hypotheses. By controlling variables, researchers can determine whether observed effects are due to the factor being studied.
Why are controlled experiments important?
Answer: C
Explanation:
Controlled experiments allow researchers to isolate one variable and observe its effects while keeping other factors constant. This makes it possible to determine cause-and-effect relationships. Option C correctly reflects this purpose. The other options misrepresent the role of experiments. On the NEX exam, scientific reading passages often focus on basic research principles and reasoning.
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NEW QUESTION # 35
Word Knowledge
The word"temporary"most nearly means:
Answer: D
Explanation:
Temporary refers to something lasting for a short period of time. Option B correctly reflects this meaning.
Recognizing time-related descriptors is common on the NEX exam.
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NEW QUESTION # 36
During translation, the cell produces proteins by using information from
Answer: C
Explanation:
Translation is the process by which proteins are synthesized at the ribosome. During this process, the genetic code carried by messenger RNA (mRNA) is read in groups of three nucleotides called codons. Each codon specifies a particular amino acid, which is added to a growing protein chain. Transfer RNA (tRNA) brings amino acids to the ribosome but does not contain the original instructions. Ribosomal RNA (rRNA) forms the structural and functional core of the ribosome, and siRNA is involved in gene silencing rather than protein synthesis. Because mRNA carries the direct genetic instructions copied from DNA during transcription, it is the correct source of information used during translation. The NEX Science section frequently tests understanding of the central dogma of molecular biology: DNA # RNA # protein.
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NEW QUESTION # 37
Word Knowledge
The word"essential"most nearly means:
Answer: C
Explanation:
"Essential" means absolutely necessary or vital. Option C is the correct synonym. The other options are opposites or unrelated. Essential is a high-frequency NEX word, especially in health and science contexts.
NEW QUESTION # 38
Review the scatter plot of hours students studied for a test and their results.
What can you conclude from the graph?
Answer: A
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 # 39
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