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HESI Biology Practice Tests & Test Prep by Exam Edge - Review



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HESI Biology - Reviews


   Excellent
Based on 170 reviews

Jill


"Thank you for the exceptional HESI tests! I failed the HESI several times before I discovered your website. I took all your practice tests and this time I passed!!!"

Sharon


"I just took my Hesi exit PN today and got a Hesi score of 1205 and a conversion score of 99.99%. Thanks for the help. Doing all those tests helped so much. Not because I saw the same questions but because I learned so much from the answer reasoning section. Hope to fly through my boards in a couple weeks. Thanks again, it was money well spent."

Welsh


"I recently had to test out of my school with an 850 on the Hesi PN, so I punched the exams from you guys about 5 to 7 exams and passed the exit HesiPn with an 988! First time around! Then I punched the NclexPN exam tests from you guys and I passed my nclex first time around! These test really helped me to study well, I am a slow learner and still yet, was able to pass! I highly recommend you purchase the tests! It will totally be worth your money! Thank you so much,"

DIANA


"I want to thank you... the tests are really helpful. I took it three times and after using your exams I finally passed it. The tests helped me specially on math section, which I got 90. "

Juliet M.


"I can't believe this website has no high following status. I bought 40 practice questions, and I did 20 practice questions and took my Hesi exit. I scored 1070. I completed all 40 practice exams and passed my boards for the first time. Exam Edge introduced me to a bunch of topics and boosted my confidence. They're rationales are so brief and straight to the point. They're not overwhelming. Thank you, Exam Edge team"



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Exam Edge is an industry leader in online test prep. We work with institutional partners to offer a wide array of practice tests that will help you prepare for your big exam. No matter how niche your field of interest might be, we are here to help you prepare for test day.



See why our users from 154 countries love us for their exam prep! Including 170 reviews for the HESI Biology exam.

Exam Edge is an industry leader in online test prep. We work with institutional partners to offer a wide array of practice tests that will help you prepare for your big exam. No matter how niche your field of interest might be, we're here to help you prepare for test day.

   Excellent -- Based on 170 reviews

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HESI Biology - Test Reviews Sample Questions

Which of the following describes a temperature inversion?

Correct Answer:
a layer of atmosphere in which temperature increases, rather than decreases with height.
*

*a temperature inversion refers to a reversal in the normal pattern of temperature in the atmosphere, where the temperature increases with altitude instead of decreasing. typically, in the lower layers of the earth's atmosphere (known as the troposphere), the temperature decreases with height. this is mainly because the atmosphere is heated from below as solar radiation warms the earth's surface, which in turn heats the air closest to it. *

*during a temperature inversion, however, this normal temperature gradient is flipped. this can happen under several conditions, such as on clear nights when the ground cools rapidly by radiating heat back into space, or when a warmer, less dense air mass moves over a cooler, denser air mass. high-pressure systems can also contribute to temperature inversions, as they can lead to clear skies and minimal wind, allowing the heat near the surface to be lost quickly and the warm air above to remain in place. *

*the impact of a temperature inversion is significant in terms of air quality and weather conditions. since temperature inversions prevent air near the ground from rising, they effectively trap pollutants such as smoke, dust, and other particulate matter close to the ground. this is why, during a temperature inversion, you might observe phenomena like smoke from a chimney flattening and spreading horizontally upon reaching a certain height instead of dispersing vertically. this trapping effect can lead to severe pollution episodes, particularly in urban areas surrounded by mountains, which further inhibit air movement. *

*furthermore, temperature inversions can affect weather conditions by stabilizing the atmosphere, which can suppress cloud formation and precipitation. this stabilization occurs because the warmer air above cooler air acts as a cap, preventing the upward movement of air that is necessary for cloud development and, subsequently, weather changes. *

*in summary, a temperature inversion is a meteorological phenomenon where the usual decrease of temperature with height reverses, leading to increased temperatures with altitude. this condition can lead to enhanced air pollution near the ground, as well as affect local weather patterns by stabilizing the atmosphere and reducing cloudiness and precipitation. understanding temperature inversions is crucial for meteorologists, environmentalists, and urban planners to manage air quality and predict weather changes more accurately.