which of the following are properties of a liquid
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Nursing Elites

ATI TEAS 7

TEAS Practice Test Science

1. Which of the following are properties of a liquid?

Correct answer: D

Rationale: The correct answer is D: 'Takes shape of container.' Liquids exhibit the property of taking the shape of their container while maintaining a fixed volume. This is due to the ability of liquid particles to flow and move freely within the container. Choices A, B, and C are incorrect. Choice A, 'High atomic attraction,' is not a general property of liquids as the level of attraction between liquid particles can vary. Choice B, 'Fixed volume,' is partially correct as liquids do have a fixed volume, but they do not have a fixed shape. Choice C, 'Low pressure,' is not a defining property of liquids.

2. What is the primary cause of acne vulgaris, commonly known as acne?

Correct answer: B

Rationale: The primary cause of acne vulgaris is clogged pores and excess oil production. Acne develops when hair follicles become clogged with oil and dead skin cells, creating an environment for bacteria to thrive, leading to inflammation and acne breakouts. While dry skin, bacterial infection alone, and vitamin deficiency can contribute to acne, they are not the main underlying cause. Therefore, the correct answer is clogged pores and excess oil production, as they form the basis for the development of acne vulgaris.

3. What is the main function of the nervous system?

Correct answer: B

Rationale: The main function of the nervous system is to control body movement and coordination by transmitting signals between different parts of the body. Choice A is incorrect because the immune system, not the nervous system, is primarily responsible for fighting infections. Choice C is incorrect as regulating metabolism is primarily handled by the endocrine system. Choice D is incorrect because the transportation of oxygen is mainly the function of the circulatory system, specifically the blood.

4. Which process involves the body's natural defense against inhaled dust and allergens?

Correct answer: C

Rationale: Ciliary action refers to the process where tiny hair-like structures called cilia in the respiratory tract help to sweep away inhaled dust and allergens, preventing them from entering deeper into the lungs. This is a crucial part of the body's natural defense mechanism against respiratory irritants. Cellular respiration (A) is the process where cells use oxygen to produce energy, not a defense mechanism against inhaled particles. Gas exchange (B) involves the exchange of oxygen and carbon dioxide in the lungs, not specifically targeting inhaled dust and allergens. Bronchoconstriction (D) is the narrowing of the airways in response to irritants or allergens, which can lead to breathing difficulties, but it is not the primary defense mechanism against these particles.

5. What type of joint is found in the shoulder and hip, allowing for a wide range of motion?

Correct answer: B

Rationale: The correct answer is B: Ball-and-socket joint. A ball-and-socket joint, like those in the shoulder and hip, allows for a wide range of motion. In a ball-and-socket joint, the rounded end of one bone fits into the cup-like socket of another bone, enabling movement in multiple directions. Choice A, Hinge joint, is incorrect because hinge joints allow movement only in one plane, like a door hinge. Choice C, Pivot joint, is incorrect as it allows rotational movement around a single axis, not the wide range of motion seen in the shoulder and hip. Choice D, Saddle joint, is also incorrect as it allows movement in multiple directions but to a lesser extent compared to the ball-and-socket joint.

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