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Nursing Elites

ATI TEAS 7

Biology

1. Homologous structures are those that:

Correct answer: C

Rationale: Rationale: - Option A is incorrect because structures with the same function but different origins are analogous structures, not homologous structures. - Option B is incorrect because structures with different functions but the same origin are also not homologous structures; they are considered to be vestigial structures. - Option D is incorrect because structures that are identical in both appearance and function are not necessarily homologous; they could be the result of convergent evolution. Homologous structures are those that share similarities in appearance and function due to being inherited from a common ancestor. These structures may have undergone modifications over time to adapt to different functions in different species, but their fundamental similarities can be traced back to a shared evolutionary history.

2. Which vitamin is synthesized in the skin upon exposure to sunlight?

Correct answer: A

Rationale: The correct answer is Vitamin D (C). When the skin is exposed to sunlight, a compound in the skin is converted to Vitamin D. Vitamin A (A) is not synthesized in the skin but is found in foods like carrots and sweet potatoes. Vitamin C (B) is not synthesized in the skin either, but is found in citrus fruits and vegetables. Vitamin E (D) is not synthesized in the skin upon sunlight exposure, but is found in nuts and seeds.

3. Which of the following is a balanced chemical equation?

Correct answer: b

Rationale: The equation is balanced, with equal numbers of atoms of each element on both sides.

4. Identify the adverb in the following sentence: The patient waited anxiously for the doctor's news.

Correct answer: B

Rationale: Adverbs modify verbs, adjectives, or other adverbs. In this sentence, "anxiously" describes how the patient "waited".

5. Which part of the brainstem is responsible for controlling vital functions such as heart rate, blood pressure, and breathing?

Correct answer: a

Rationale: The correct answer is A: Medulla oblongata. The medulla oblongata is the lower part of the brainstem that regulates vital autonomic functions such as heart rate, blood pressure, and breathing. It contains important centers for controlling these essential bodily functions, making it a critical part of the brain for maintaining life. The pons, midbrain, and cerebellum are also parts of the brainstem, but they are not primarily responsible for regulating these vital functions. Therefore, the medulla oblongata is the specific region of the brainstem that directly controls these essential physiological processes.

6. Ms. Valencia prepares the process standards. Which of the following is NOT a process

Correct answer: D

Rationale: In this question, Ms. Valencia is tasked with preparing process standards, which are systematic procedures or steps followed to ensure quality care. Options A, B, and C all refer to specific processes that are essential in healthcare: timely assessment, obtaining informed consent, and assessing patient satisfaction. However, option D about providing patient education is more focused on an outcome (patient education) rather than a specific process standard. While patient education is important, the question is asking for a process standard, making option D the correct answer as it does not directly relate to a specific process standard.

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