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Nursing Elites

ATI TEAS 7

physics

1. What phenomenon occurs when a wave encounters a change in medium causing a change in its speed and direction?

Correct answer: a

Rationale: Refraction happens when a wave changes its speed and direction due to encountering a change in medium.

2. What property of matter refers to the amount of space occupied by an object?

Correct answer: b

Rationale: Volume measures the amount of space occupied by an object.

3. Identify the conjunction in the following sentence: He went to the store, but they were already closed.

Correct answer: C

Rationale: Conjunctions connect words, phrases, or clauses. "But" joins two contrasting ideas in the sentence.

4. Which of the following is an example of a chemical property of matter?

Correct answer: b

Rationale: Chemical properties describe how a substance reacts with other substances, such as its ability to burn (flammability) or react with acids or bases.

5. What is the name of the wart-like growths caused by the human papillomavirus (HPV)?

Correct answer: C

Rationale: The correct answer is C: 'Papillomas.' Wart-like growths caused by the human papillomavirus (HPV) are known as papillomas. Keloids are raised scars that occur at the site of skin injury, while carcinomas are cancerous tumors. It is important to differentiate between these terms to accurately describe the specific condition caused by HPV. Papillomas can vary in appearance and may be found on the skin, genital area, or inside the mouth and throat.

6. What is the term for the involuntary muscle contractions that move food through the digestive tract?

Correct answer: B

Rationale: The correct answer is B: Peristalsis. Peristalsis is the term used to describe the involuntary muscle contractions that help move food through the digestive tract. These rhythmic contractions occur in the smooth muscles of the digestive system and help propel food and other substances like chyme through the esophagus, stomach, and intestines. Segmentation, choice A, refers to the mixing movements in the intestines that aid in digestion but do not move food along the tract. Chyme, choice C, is the semi-fluid mass of partially digested food that moves from the stomach to the small intestine. Emulsification, choice D, is the process of breaking down fats into smaller droplets to aid in digestion, but it is not directly related to the movement of food through the digestive tract.

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