a description of the word environment is
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HESI A2

HESI A2 Practice Test Vocabulary

1. What is the description of the word ENVIRONMENT?

Correct answer: C

Rationale: The correct answer is C because the environment refers to the surroundings or conditions in which a person, animal, or plant lives or operates, encompassing both internal and external factors. Choices A, B, and D are incorrect as they do not accurately define the concept of 'environment.' Choice A is too broad and does not specifically address the components of an environment. Choice B is vague and does not capture the entirety of what an environment entails. Choice D is limited in scope, focusing solely on a home environment rather than the broader concept of environment.

2. What is the meaning of the word tolerance as used in the last paragraph about Yoga?

Correct answer: C

Rationale: In this context, "tolerance" refers to the capacity to endure discomfort, particularly in relation to pain during yoga practices. The passage discusses how yoga improves pain tolerance, emphasizing the ability to withstand discomfort rather than any other meanings associated with the term, such as open-mindedness or approval.

3. How many ounces are in a gallon?

Correct answer: B

Rationale: The correct answer is B: 128 oz. There are 128 ounces in a gallon. This is a standard conversion factor in the US customary system. Choices A, C, and D are incorrect because they do not reflect the accurate conversion of ounces in a gallon.

4. During an isothermal (constant temperature) expansion, what is the work done by the gas on the surroundings?

Correct answer: D

Rationale: In an isothermal expansion, the temperature remains constant, meaning there is no change in internal energy. However, the gas still does work on the surroundings as it expands, and this work is positive. Since internal energy does not change, the correct answer is D, 'Positive and greater than the change in internal energy.' Choice A is incorrect because the work done is not equal to the change in internal energy. Choice B is incorrect as work is done during the expansion. Choice C is incorrect since the work done is not negative during an isothermal expansion.

5. Which part of the brain is responsible for regulating body temperature?

Correct answer: D

Rationale: The hypothalamus is the part of the brain responsible for regulating body temperature, along with controlling other autonomic functions like hunger, thirst, and sleep. It acts as the body's internal thermostat, helping to maintain a stable internal environment despite external temperature changes. The cerebrum is mainly associated with functions like thinking, perception, and voluntary movements, making it unrelated to regulating body temperature. The cerebellum is involved in coordination and balance, not in regulating body temperature. The brainstem is essential for basic life functions like breathing and heart rate, but it is not primarily responsible for regulating body temperature.

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