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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Science | 38% | - Health
|
| Topic 2: Verbal Ability | 34% | - Reading Comprehension
|
| Topic 3: Mathematics | 28% | - Numbers and Operations
|
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For the convenience of the Exams candidates, the difficult portions of the syllabus have been explained with the help of experts to be simplified. One remarkable feature of NEX actual dumps questions and answers is their similarity with the real exam scenario. They not only give you understanding of the NEX Exams but also impart you an opportunity to master it. To enhance further your exam ability and strengthen your learning, you can benefit yourself getting practice NLN real dumps.
NEW QUESTION # 83
Express the fraction 3/15 as a percent.
Round to the nearest tenth place.
Answer: A
Explanation:
This problem tests fraction-to-percent conversion and rounding, a very common skill on the NEX Math Section. First, simplify the fraction if possible. The fraction 3/15 can be reduced by dividing both the numerator and denominator by 3. This gives 1/5. Simplifying first makes the calculation easier and reduces the chance of errors. Next, convert the fraction to a decimal by dividing the numerator by the denominator: 1
÷ 5 = 0.2. To convert a decimal to a percent, multiply by 100. Thus, 0.2 × 100 = 20.0%. The question asks for the answer rounded to the nearest tenth place. Since 20.0 already has one decimal place, no additional rounding is needed. Therefore, the correct answer is 20.0%, which corresponds to option A. Option B (0.2%) incorrectly leaves the value as a decimal percent. Option C (5.0%) is a common mistake from dividing 3 by
60. Option D (33.3%) would be correct for 1/3, not 3/15.
NEW QUESTION # 84
The table below shows the average daily requirements of essential amino acids in the diet at various stages of human life.
Which of these amino acids is required in the greatest amount in the diet of toddlers?
Answer: D
Explanation:
This question requires interpreting data from a table, a common skill tested on the NEX Science exam.
Looking specifically at the column for toddlers, the amino acid with the highest listed requirement (measured in milligrams per kilogram of body mass per day) is leucine. Although lysine, valine, and phenylalanine with tyrosine are also required in significant amounts, leucine has the highest numerical value for toddlers. Leucine is an essential amino acid that plays a critical role in growth, tissue repair, and muscle protein synthesis, which are especially important during early childhood when rapid growth occurs. Because toddlers are in a phase of accelerated development, higher amounts of certain amino acids are required compared to adults.
The key to answering this question correctly is careful comparison of the numerical values within the toddler column, not overall trends across all age groups.
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NEW QUESTION # 85
The thymus, lymph nodes, and spleen are all organs of which system?
Answer: A
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 # 86
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 # 87
Which of the following will increase the amount of oxygen produced by a plant?
Answer: D
Explanation:
Oxygen is produced during the process of photosynthesis, which occurs in the chloroplasts of plant cells.
During photosynthesis, plants use carbon dioxide, water, and light energy to produce glucose and oxygen.
Carbon dioxide is one of the key raw materials required for this process. When the availability of carbon dioxide increases, the rate of photosynthesis can also increase, assuming that light and water are not limiting factors. As photosynthesis increases, more oxygen is released as a byproduct. Decreasing carbon dioxide would slow photosynthesis and reduce oxygen production. Glucose is a product of photosynthesis, not a reactant, so changing glucose levels does not directly increase oxygen output. Therefore, increasing available carbon dioxide is the correct answer. The NEX Science exam frequently tests understanding of the inputs and outputs of photosynthesis and how environmental factors affect the process.
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NEW QUESTION # 88
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