Nursing Elites

1. According to cognitive-developmental theory, a scheme is __________.

• A. an internal process that occurs apart from any contact with the environment
• B. the understanding that objects continue to exist when out of sight
• C. the ability to copy the behavior of others
• D. an organized way of making sense of experience

Correct answer: D

Rationale: In cognitive-developmental theory, a scheme is an organized way of making sense of experience. This term refers to mental structures or frameworks that help individuals interpret and understand the world around them. Choice A is incorrect because schemes are developed through interaction with the environment. Choice B refers to object permanence, a concept from Piaget's theory of cognitive development, not schemes. Choice C describes observational learning, which is different from the concept of schemes in cognitive development.

2. __________ children are at risk for poor school performance, substance abuse, and antisocial behavior in adolescence and criminality in adulthood.

• A. Average
• B. Controversial
• C. Rejected
• D. Popular

Correct answer: C

Rationale: Rejected children often face social difficulties that lead to negative outcomes later in life, including academic and behavioral problems. The term 'rejected' specifically refers to children who are socially excluded or shunned by their peers, leading to the mentioned negative consequences. 'Average,' 'Controversial,' and 'Popular' do not convey the same meaning and are not related to the risks mentioned in the question.

3. Which factor disrupts the brain's regulation of hunger and metabolism?

• A. Self-regulation
• B. Frequent eating out
• C. Reduced sleep
• D. Using screen media

Correct answer: C

Rationale: Reduced sleep is the correct answer as it affects hormones that regulate hunger and metabolism, leading to increased appetite and weight gain. Self-regulation is not directly related to the brain's regulation of hunger and metabolism. Frequent eating out may impact food choices and portion sizes but is not specifically linked to disrupting the brain's regulation. Using screen media can affect sleep patterns but is not as directly related to the brain's regulation of hunger and metabolism as reduced sleep.

4. Which statement about a blastocyst is true?

• A. It consists of a single cell.
• B. It is a structure that feeds the developing organism.
• C. Between the seventh and ninth days, it burrows deep into the uterine lining.
• D. It is a membrane that helps to keep the temperature of the prenatal world constant.

Correct answer: C

Rationale: The statement that is true about a blastocyst is that between the seventh and ninth days, it burrows deep into the uterine lining. This process, known as implantation, is essential for the blastocyst to establish a connection with the mother's body and receive nutrients for further development. It is a critical stage in prenatal development and sets the foundation for pregnancy. Choices A, B, and D are incorrect. A blastocyst is not a single cell but rather a structure composed of many cells. It is not a structure that feeds the developing organism; instead, it implants in the uterine lining to receive nutrients. It is not a membrane that regulates temperature but plays a crucial role in the initial stages of pregnancy by implanting in the uterus.

5. During prenatal development, the ectoderm folds over to form the __________, or primitive spinal cord.

• A. mesoderm; neuron tract
• B. neural tube
• C. endoderm; neural tube
• D. neuron tract

Correct answer: B

Rationale: The correct answer is B. During prenatal development, the ectoderm folds over to form the neural tube, which eventually develops into the brain and spinal cord. The neural tube is the precursor to the central nervous system, including the primitive spinal cord. Choices A, C, and D are incorrect because the mesoderm does not form the neural tube, the endoderm is not involved in the formation of the central nervous system, and neuron tract is not the structure that forms the primitive spinal cord.

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