HESI A2 Reading Comprehension V1 2024

Correct Answer: A

Rationale: The correct answer is A: call into service. In the context of the second paragraph, 'enlist' means to join or sign up for a particular cause or service. This is evident from the sentence mentioning individuals joining the army. Choice B, write down, is incorrect because 'enlist' doesn't refer to simply writing something. Choice C, send away, is incorrect as it implies the opposite meaning of 'enlist.' Choice D, put across, is also incorrect as it does not capture the idea of joining or signing up as 'enlist' does.

Correct Answer: A

Rationale: The correct answer is A: foodborne illnesses. The subject of the passage is foodborne illnesses, as it is the main focus and discussed in detail. The passage may mention other aspects like dangers of uncooked food, bacteria, and proper food preparation, but these are supporting details rather than the main subject. Foodborne illnesses encompass these topics but go beyond them to cover the broader issue of illnesses caused by contaminated food.

Correct Answer: C

Rationale: The correct answer is C: Something that is significant but unusual. In the context of the second paragraph, the word 'phenomenon' is used to describe something that is noteworthy and out of the ordinary. It implies that the subject being discussed is unique or remarkable. Choices A, B, and D are incorrect because they do not capture the essence of 'phenomenon' as being both significant and unusual. Option A focuses on being lifeless, B on nonchalant behavior, and D on chemical origin, none of which align with the meaning of 'phenomenon' in this specific paragraph.

Correct Answer: A

Rationale: The correct answer is A because sound pitch is determined by the frequency of sound waves. When waves are closer together, they have a higher frequency, resulting in a higher pitch. In contrast, when waves are farther apart, the frequency is lower, leading to a lower pitch. Choices B, C, and D are incorrect as they do not directly relate to the frequency of sound waves, which is the key factor affecting pitch.

Correct Answer: C

Rationale: The correct answer is C: To inform the reader how the cardiovascular system regulates blood pressure. The writer's primary purpose is to educate the reader about the mechanisms and processes involved in regulating blood pressure within the cardiovascular system. This is evident from the focus on explaining how the cardiovascular system works to maintain blood pressure levels. The other choices are incorrect because they focus on different aspects such as the dangers of high blood pressure (A), the relationship between high blood pressure and heart attacks (B), and persuading the reader about the importance of controlling blood pressure (D), which are not the main objectives of the essay.