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| Section | Objectives |
|---|---|
| Topic 1: Mathematics | - Word Problems
|
| Topic 2: Verbal Skills | - Reading Comprehension
|
| Topic 3: Science | - Biology
|
>> NEX Reliable Study Questions <<
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NEW QUESTION # 123
Word Knowledge
The word"restrict"most nearly means:
Answer: D
Explanation:
Restrict means to limit or control. Option C is the correct synonym. This word commonly appears in medical and safety contexts.
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NEW QUESTION # 124
What is the result of crossing over during meiosis?
Answer: C
Explanation:
Crossing over is a key event that occurs during prophase I of meiosis. During this process, homologous chromosomes pair up and exchange corresponding segments of DNA. Specifically, non-sister chromatids exchange genetic material, which results in new combinations of alleles. The primary result of this exchange is increased genetic variation in gametes, which is essential for evolution and diversity within a species. While chiasmata are structures formed during crossing over, they describe the physical points of contact rather than the outcome of the process. Lining up at the metaphase plate and random assortment occur later during meiosis and are separate mechanisms of genetic variation. Therefore, the correct result of crossing over is the exchange of DNA segments between homologous chromosomes. This process ensures that offspring have unique genetic combinations that differ from both parents, which is a core concept tested on the NEX Science exam.
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NEW QUESTION # 125
Reading Comprehension
Passage:
Regular physical activity improves cardiovascular health by strengthening the heart and improving circulation. Exercise can also help manage stress, improve mood, and reduce the risk of chronic disease.
Which benefit of exercise is mentioned in the passage?
Answer: A
Explanation:
The passage lists several benefits of exercise, including improved cardiovascular health, stress management, improved mood, and reduced chronic disease risk. Option B is explicitly mentioned, making it the correct answer. The other options introduce benefits not discussed in the passage. On the NEX exam, detail-based questions require careful reading to identify information that is directly stated rather than inferred. Choosing only what is explicitly mentioned is key.
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NEW QUESTION # 126
In order to neutralize a solution of HCl, one could add
Answer: C
Explanation:
Hydrochloric acid (HCl) is a strong acid. To neutralize an acid, a base must be added. Sodium hydroxide (NaOH) is a strong base that reacts with HCl to form water and a salt (sodium chloride). This neutralization reaction reduces the acidity of the solution. The other options-HNO#, CH#COOH, and H#SO#-are all acids and would increase acidity rather than neutralize it. The NEX Science exam often tests acid-base chemistry and emphasizes recognizing common acids and bases. Since NaOH is the only base listed, option C is correct.
NEW QUESTION # 127
What is the term for small, clear vessels found near blood capillaries and responsible for draining excess interstitial fluid not reabsorbed into the blood?
Answer: A
Explanation:
Lymphatic capillaries are small, thin-walled vessels that collect excess interstitial fluid that is not reabsorbed by blood capillaries. This fluid, now called lymph, is transported through the lymphatic system and eventually returned to the bloodstream. This process helps maintain fluid balance and prevents tissue swelling. Arterioles and venules are part of the blood vascular system, not the lymphatic system. Immune capillaries are not a recognized anatomical structure. The NEX Science exam often tests the relationship between the circulatory and lymphatic systems, emphasizing the role of lymphatic capillaries in fluid regulation and immune defense.
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NEW QUESTION # 128
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