select the meaning of the word in the sentence it is not wise to skimp on personal hygiene
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HESI A2

HESI A2 Vocabulary Quizlet

1. What is the meaning of the word 'hygiene' in the sentence: 'It is not wise to skimp on personal hygiene'?

Correct answer: A

Rationale: The correct answer is A: 'Measures contributing to cleanliness.' In the given sentence, 'hygiene' refers to practices that promote cleanliness and health, such as washing hands, taking showers, and maintaining a clean environment. Choice B, 'Financial resources,' is incorrect as hygiene does not pertain to money matters. Choice C, 'Insurance,' is unrelated to the concept of hygiene. Choice D, 'Friendliness,' is also incorrect as it does not align with the context of personal cleanliness and health.

2. When calculating an object’s acceleration, what must you do?

Correct answer: D

Rationale: When calculating an object's acceleration, you must divide the change in velocity by the change in time. Acceleration is defined as the rate of change of velocity with respect to time. By determining the ratio of the change in velocity to the change in time, you can ascertain how quickly the velocity of an object is changing, thereby finding its acceleration. Choice A is incorrect because acceleration is not calculated by dividing time by velocity. Choice B is incorrect as it describes multiplying velocity by time, which does not yield acceleration. Choice C is incorrect as finding the difference between time and velocity is not a method to calculate acceleration.

3. How should a researcher test the hypothesis that practicing yoga reduces blood pressure?

Correct answer: B

Rationale: Option B is the most appropriate way to test the hypothesis that practicing yoga reduces blood pressure. By dividing 30 female participants into two groups with similar average blood pressure levels and testing each participant's blood pressure after participating in a yoga class, the researcher can effectively evaluate the impact of yoga on blood pressure. This design allows for a comparison between the two groups, helping to isolate the effects of yoga practice on blood pressure. Option A only involves one male and one female participant, which may not provide a representative sample. Option C introduces an additional variable of watching television, which could confound the results. Option D lacks consistency in the experimental design by switching the activities between men and women, making it difficult to attribute any observed changes solely to yoga practice.

4. Which substance is a product of photosynthesis?

Correct answer: D

Rationale: During photosynthesis, plants and other organisms convert carbon dioxide and water into glucose and oxygen. Glucose is a carbohydrate produced by plants as a result of photosynthesis, serving as their main source of energy. Oxygen is released as a byproduct of this process, while carbon dioxide and water are the raw materials used to produce glucose. Therefore, the correct answer is 'Glucose,' making it a vital product of the photosynthesis process. Choices A, B, and C are incorrect as carbon dioxide and water are the reactants needed for photosynthesis, and oxygen is released as a byproduct.

5. What is the primary function of the adrenal glands?

Correct answer: B

Rationale: The primary function of the adrenal glands is to regulate metabolism and the body's stress response. The adrenal glands produce hormones like cortisol and adrenaline that play a vital role in managing metabolism, immune response, and stress levels. Choice A is incorrect because insulin is produced by the pancreas, not the adrenal glands. Choice C is incorrect because fighting infections is primarily the role of the immune system. Choice D is incorrect as the regulation of blood pressure involves organs like the heart, kidneys, and blood vessels, not the adrenal glands.

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