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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Science | 38% | - Health
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| Topic 2: Verbal Ability | 34% | - Reading Comprehension
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| Topic 3: Mathematics | 28% | - Numbers and Operations
|
A minor mistake may result you to lose chance even losing out on your NEX Exam. So we hold responsible tents when compiling the NEX learning guide. The principles of our NEXpractice materials can be expressed in words like clarity, correction and completeness. Experts expressed their meaning with clarity by knowledgeable and understandable words which cannot be misunderstood.
NEW QUESTION # 14
Which microorganism is considered harmful or causes disease?
Answer: C
Explanation:
A pathogen is any microorganism that causes disease in a host. Pathogens include bacteria, viruses, fungi, and parasites. Enzymes are proteins that speed up chemical reactions and are not microorganisms. Immune factors are components of the immune system that protect against disease. A vector is an organism, such as a mosquito or tick, that transmits pathogens but does not itself cause disease. The NEX Science exam commonly assesses understanding of infectious disease terminology and distinctions between disease-causing organisms and disease carriers. Recognizing pathogens as the direct cause of illness is a key concept in microbiology and public health.
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NEW QUESTION # 15
Word Knowledge
The word"implement"most nearly means:
Answer: A
Explanation:
To implement means to put a plan or decision into action. Option B is the correct synonym. This word is frequently used in healthcare policies and procedures.
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NEW QUESTION # 16
Which of these responses is an example of a simple negative feedback response in the body?
Answer: A
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 # 17
Four students were comparing their test scores on an exam. All questions were worth the same number of points.
* Student A: 19 out of 26
* Student B: 75 out of 100
* Student C: 71%
* Student D: 0.719
Which student scored the highest on the exam?
Answer: A
Explanation:
This problem requires comparing fractions, percentages, and decimals by converting them to the same form.
Convert each score to a decimal. Student A: 19 ÷ 26 # 0.731. Student B: 75 ÷ 100 = 0.75. Student C: 71% =
0.71. Student D: already given as 0.719. Comparing these values, 0.75 is the highest. Therefore, Student B scored the highest. Option D (0.719) is close but still lower than 0.75. The NEX frequently tests comparison skills across different numerical formats, so converting everything to decimals is the safest approach.
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NEW QUESTION # 18
Which organ system can alter the amount of CO# in the blood?
Answer: B
Explanation:
The respiratory system directly regulates the level of carbon dioxide (CO#) in the blood. CO# is a waste product of cellular respiration and is removed from the body through exhalation. When breathing rate increases, more CO# is expelled, lowering blood CO# levels. When breathing slows, CO# levels rise. While the cardiovascular system transports CO#, it does not regulate its concentration. The urinary system regulates pH and fluid balance but does not directly remove CO#. The endocrine system controls hormones, not gas exchange. The NEX Science exam frequently emphasizes the role of the respiratory system in maintaining acid-base balance through CO# regulation.
NEW QUESTION # 19
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