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| Section | Objectives |
|---|---|
| Topic 1: Science | - Basic Chemistry
|
| Topic 2: Mathematics | - Word Problems
|
| Topic 3: Verbal Skills | - Language Usage
|
Our NEX study guide is a very important learning plan to make sure that you will pass the exam successfully and achieve the certification. Our staff will create a unique study plan for you based on the choice of the right version of the NEX Exam Questions. In order to allow you to study and digest the content of our NEX practice prep more efficiently, we will advise you to choose the most suitable version based on your time and knowledge.
NEW QUESTION # 27
Animal cells contain mitochondria, while plant cells contain both mitochondria and chloroplasts. What does that tell us about their functions?
Answer: C
Explanation:
Mitochondria are responsible for cellular respiration, which occurs in both plant and animal cells.
Chloroplasts carry out photosynthesis and are found only in plant cells. Therefore, only plants can perform photosynthesis, while both plants and animals can perform cellular respiration. This distinction is a core concept in cell biology and is frequently tested on the NEX Science exam.
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NEW QUESTION # 28
An upcoming event has a total budget of $500.
* Decorations are
1
8
8
1
of the budget.
* Food is 25% of the budget.
* The remaining budget is for both the venue and entertainment.
How much money will be available to spend on the venue and entertainment?
Answer: B
Explanation:
This problem tests fractions, percentages, and subtraction of parts from a whole-common NEX skills. First calculate the amount spent on decorations:
1
8
8
1
of $500 equals $62.50. Next calculate the food cost: 25% is equivalent to 0.25, and 0.25 × 500 = $125. Add these two expenses together: $62.50 + $125 = $187.50. This represents the portion of the budget already allocated. To find the remaining budget for venue and entertainment, subtract this amount from the total budget: $500 # $187.50 = $312.50. Therefore, option A is correct. Option B assumes only one category was subtracted. Option C results from incorrect fraction conversion. Option D represents the amount already spent, not the remainder. NEX questions often require careful step-by-step subtraction after converting fractions and percentages correctly.
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NEW QUESTION # 29
Word Knowledge
The word"decline"most nearly means:
Answer: D
Explanation:
"Decline" can mean either to refuse or to decrease. Option C captures both meanings. The other options are opposites or unrelated. Understanding multiple meanings of common words is important for the NEX verbal section.
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NEW QUESTION # 30
Which microorganism is considered harmful or causes disease?
Answer: B
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 # 31
A doctor lowered a patient's dosage from 50 mg to 40 mg. What percent decrease was this?
Answer: A
Explanation:
This question tests percent decrease, a common NEX topic. First find the amount of decrease: 50 mg # 40 mg
= 10 mg. Next divide the decrease by the original amount:
10 ÷ 50 = 0.2.
Convert the decimal to a percent by multiplying by 100:
0.2 × 100 = 20%.
Therefore, the correct answer is B. Option D represents the numerical decrease without considering the original value. Option A and C result from incorrect division. On the NEX exam, percent change problems always use the original value as the denominator.
NEW QUESTION # 32
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