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Nursing Elites

ATI TEAS 7

Chemistry

1. Which element has the same number of protons and neutrons?

Correct answer: D

Rationale: Helium (He) - He-4 has 2 protons and 2 neutrons, while the other options have differing numbers.

2. Which of the following best describes the function of the pericardium?

Correct answer: B

Rationale: The correct answer is B: "It acts as a protective sac surrounding the heart." The pericardium is a double-layered membrane that surrounds and protects the heart, providing physical support and preventing overexpansion. It also helps reduce friction between the heart and surrounding structures during heartbeats. Options A, C, and D are incorrect as they describe functions of other parts of the heart such as valves, electrical impulse generation, and transmission pathways, respectively. Understanding the role of the pericardium in protecting the heart is crucial for comprehending the anatomical and physiological aspects of the cardiovascular system.

3. The final sentence suggests that users should approach social media with a healthy dose of

Correct answer: B

Rationale: The emphasis on "critical thinking" and "skepticism" suggests the importance of approaching social media with a cautious and discerning mind, aligning with B

4. Pinpoint the smallest bone in the human body.

Correct answer: A

Rationale: The stapes, crucial for hearing, transmits and amplifies sound vibrations. Despite its size, it plays a vital role in auditory perception.

5. Which energy conversion occurs in a solar cell?

Correct answer: d

Rationale: Solar cells convert solar energy (sunlight) directly into electrical energy.

6. During antibiotic use, bacteria can evolve resistance. This is an example of:

Correct answer: D

Rationale: Rationale: - Coevolution (option A) refers to the influence of two species on each other's evolution, which is not the case in the scenario described in the question. - Convergent evolution (option B) involves unrelated organisms evolving similar traits due to similar environmental pressures, which is not directly applicable to the situation of bacteria evolving resistance to antibiotics. - Macroevolution (option C) refers to large-scale evolutionary changes over long periods, which is not specifically demonstrated in the context of bacteria evolving resistance during antibiotic use. - The process of bacteria evolving resistance to antibiotics due to the selective pressure exerted by the antibiotics is an example of artificial selection (human intervention selecting for certain traits) acting on a natural process (bacterial evolution). Antibiotic use creates a selective pressure that favors the survival and reproduction of bacteria with resistance traits, leading to the evolution of an

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