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| Section | Weight | Objectives |
|---|---|---|
| Verbal Ability | 34% | - Reading Comprehension
|
| Mathematics | 28% | - Algebra
|
| Science | 38% | - Human Anatomy & Physiology
|
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NEW QUESTION # 30
Reading Comprehension
Passage:
Vaccination programs rely on widespread participation to be effective. When a large portion of the population is vaccinated, herd immunity helps protect individuals who cannot be vaccinated.
What is the primary benefit of herd immunity?
Answer: D
Explanation:
The passage explains that herd immunity occurs when a large percentage of the population is vaccinated, which helps protect those who cannot receive vaccines. Option B correctly states this benefit. The passage does not suggest that herd immunity eliminates all diseases or replaces hygiene practices. It also does not mention reducing side effects. On the NEX exam, cause-and-effect questions require identifying the specific outcome discussed rather than making broad assumptions. Herd immunity's protective effect on vulnerable individuals is the key idea.
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NEW QUESTION # 31
Reading Comprehension
Passage:
Regular exercise helps maintain bone density and muscle strength. Weight-bearing activities such as walking and resistance training are especially important in preventing osteoporosis as people age.
Which activity mentioned in the passage helps prevent bone loss?
Answer: C
Explanation:
The passage specifically mentions weight-bearing activities as being important for maintaining bone density and preventing osteoporosis. Walking is a weight-bearing exercise because the bones must support the body's weight during movement. Option C is therefore correct. The passage does not mention stretching, swimming, or meditation. While swimming is good for cardiovascular health, it is not weight-bearing. On the NEX exam, detail questions often require recognizing examples given directly in the passage rather than applying outside knowledge. Selecting walking demonstrates accurate reading and attention to detail.
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NEW QUESTION # 32
Solve for y and round to the nearest tenth.
Answer: A
Explanation:
This equation involves a mixed number and rounding. First convert the mixed numberinto a decimal. Five divided by eight equals 0.625, so the mixed number becomes 2.625. The equation now reads:
2.625y + 0.25 = 64.
Subtract 0.25 from both sides to isolate the term with y:
2.625y = 63.75.
Next, divide both sides by 2.625:
y # 24.2857.
The question asks for the answer rounded to the nearest tenth. Rounding 24.2857 gives 24.3. Therefore, option A is correct. NEX math questions frequently combine fractions, decimals, and rounding, so converting to decimals early helps reduce errors.
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NEW QUESTION # 33
Review the image below.
In which part of the spinal column are the vertebrae depicted by bracket B located?
Answer: B
Explanation:
This question tests knowledge of spinal anatomy and the ability to interpret labeled diagrams, which is common on the NEX Science exam. The vertebral column is divided into regions: cervical (neck), thoracic (upper and mid-back), lumbar (lower back), sacral, and coccygeal regions. In the image, bracket B corresponds to the long middle portion of the spine where ribs attach. This region contains the thoracic vertebrae, which are larger than cervical vertebrae but smaller than lumbar vertebrae and are uniquely characterized by rib articulation. The sacral region is located below the lumbar spine and consists of fused vertebrae, while the cervical region is at the top of the spine near the skull. The lumbar region is shorter and thicker, designed to support body weight. Because bracket B shows the rib-bearing portion of the spine, the correct answer is thoracic. The NEX often assesses spatial understanding of skeletal structures using diagrams.
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NEW QUESTION # 34
Which of the following structures is found only in bacterial cells, not in plant or animal cells?
Answer: A
Explanation:
Bacterial cells are classified as prokaryotic cells, meaning they lack a membrane-bound nucleus. Instead of a nucleus, bacteria contain their genetic material in a region called the nucleoid. The nucleoid is not surrounded by a membrane and is unique to prokaryotic cells. In contrast, plant and animal cells are eukaryotic and store their DNA inside a true nucleus. Cell membranes, ribosomes, and DNA are found in all living cells, including bacteria, plants, and animals. Ribosomes in bacteria are smaller than those in eukaryotic cells, but they serve the same function of protein synthesis. Because the nucleoid region is exclusive to bacteria and other prokaryotes, option C is the correct answer. The NEX Science section frequently tests differences between prokaryotic and eukaryotic cells, making this an important concept to master.
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NEW QUESTION # 35
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