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| Section | Weight | Objectives |
|---|---|---|
| Verbal Ability | 34% | - Word Knowledge
|
| Mathematics | 28% | - Data & Information
|
| Science | 38% | - Health
|
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NEW QUESTION # 99
Which of these responses is an example of a simple negative feedback response in the body?
Answer: B
Explanation:
Negative feedback occurs when a change in a physiological variable triggers a response that counteracts the initial change, helping maintain homeostasis. When blood glucose levels rise, the pancreas releases insulin, which promotes glucose uptake by cells and lowers blood glucose back to normal levels. This is a classic example of negative feedback. Option B is incorrect because thyroxine increases metabolism, not decreases it.
Options A and D do not clearly demonstrate a direct feedback loop restoring balance. The NEX Science exam often highlights glucose regulation as a key example of negative feedback because it clearly illustrates cause- and-effect relationships within endocrine control systems.
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NEW QUESTION # 100
The thymus, lymph nodes, and spleen are all organs of which system?
Answer: D
Explanation:
The thymus, lymph nodes, and spleen are key components of the immune system. The immune system is responsible for defending the body against pathogens such as bacteria, viruses, and other foreign invaders.
The thymus plays an important role in the maturation of T lymphocytes (T cells), which are critical for adaptive immunity. Lymph nodes filter lymphatic fluid and trap pathogens, allowing immune cells to recognize and respond to infections. The spleen filters blood, removes old or damaged red blood cells, and helps initiate immune responses to blood-borne pathogens. While the endocrine system regulates hormones, the cardiovascular system transports blood, and the integumentary system protects the body externally, none of these systems include the thymus, lymph nodes, and spleen as primary organs. The NEX Science exam often tests system identification by grouping organs with shared functions, making the immune system the correct choice.
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NEW QUESTION # 101
Reading Comprehension
Passage:
Time management is an important skill for students in demanding programs. Creating schedules, prioritizing tasks, and setting realistic goals can reduce stress and improve academic performance.
Which strategy is mentioned as a way to improve time management?
Answer: C
Explanation:
The passage discusses several strategies that help improve time management, including creating schedules, prioritizing tasks, and setting realistic goals. Option B directly reflects one of these strategies. The other options contradict or ignore the recommendations in the passage. Avoiding deadlines and working without schedules would worsen time management, and studying without breaks is not mentioned. On the NEX exam, reading comprehension questions often focus on identifying practical strategies or recommendations explicitly stated in the passage. Selecting prioritizing tasks demonstrates accurate understanding of the author's suggestions.
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NEW QUESTION # 102
Reading Comprehension
Passage:
Preventive screenings can identify health problems before symptoms develop. Early detection often leads to more effective treatment and better outcomes.
What is the benefit of preventive screenings?
Answer: B
Explanation:
The passage emphasizes that preventive screenings allow health problems to be identified before symptoms appear. Option C accurately reflects this benefit. The other options are either incorrect or exaggerated. On the NEX exam, benefit questions often focus on early intervention and prevention themes.
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NEW QUESTION # 103
Word Knowledge
The word"reluctant"most nearly means:
Answer: B
Explanation:
"Reluctant" describes someone who is unwilling or hesitant to act. Option C best matches this meaning. The other options suggest eagerness or readiness, which are opposites. Context clues on the NEX often rely on emotional tone.
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NEW QUESTION # 104
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