what statement about jetlag can be inferred from the passage on daylight savings time

HESI A2

HESI A2 Reading Comprehension Practice Test

1. What statement about jetlag can be inferred from the passage on Daylight Savings Time?

A. Jetlag is caused by flying at high speeds.
B. Jetlag is caused by moving between time zones.
C. Jetlag is unrelated to time zone changes.
D. Jetlag is a myth.

Correct answer: B

Rationale: The correct answer is B: 'Jetlag is caused by moving between time zones.' The passage explains that jetlag occurs when moving suddenly from one time zone to another, such as when flying from Asia to North America. This disrupts the body's internal clock, leading to symptoms like tiredness and sleep disturbances. Choice A is incorrect as jetlag is not attributed to high-speed travel but to time zone changes. Choice C is incorrect as the passage clearly links jetlag to changes in time zones. Choice D is incorrect as jetlag is a real phenomenon experienced by individuals who travel across different time zones.

2. What is the meaning of the word 'shifts' as used in the third paragraph?

A. Alterations
B. Stints
C. Removals
D. Transfers

Correct answer: A

Rationale: In this context, 'shifts' refers to changes or alterations in brain chemistry and electrophysiology. The word 'alterations' best captures the idea that significant changes are occurring in the brain. 'Stints' (choice B) refer to short periods of time or work, which is not the meaning intended here. 'Removals' (choice C) and 'transfers' (choice D) do not fit the context of the sentence and are not related to the changes happening in the brain as described in the extract.

3. Identify the overall tone of the essay about Sunny-Side Up.

A. Confused.
B. Confident.
C. Disheartened.
D. Disapproving.

Correct answer: B

Rationale: The overall tone of the essay is confident, as the author articulates the positive effects of sunlight and presents a well-supported argument. The assertive language used throughout reflects a strong belief in the benefits of sunlight, making B the correct answer.

4. A reader might infer from this passage that NASA ___________.

A. Plans new twin studies as it aims for Mars
B. Allows other agencies to study its astronauts
C. Will use these data in planning future trips
D. Cares more about physiology than psychology

Correct answer: C

Rationale: The passage suggests that NASA will use the findings from the twin study to plan future extended space missions.

5. What is the meaning of the word 'emitting' as it is used in the second paragraph?

A. Repelling
B. Releasing
C. Closing
D. Charging

Correct answer: B

Rationale: In the context provided, 'emitting' means releasing, specifically referring to the electric currents being released in the body. The passage describes how electric currents are constantly being emitted in the body and can be detected on the body's surface, ultimately recorded by an electrocardiograph. This process is about the release of electric impulses, making 'releasing' the correct interpretation. Choice A, 'Repelling,' implies pushing away, which is not the intended meaning in this context. Choice C, 'Closing,' and Choice D, 'Charging,' do not align with the context of electric currents being emitted.