ATI RN
Human Growth and Development Exam Questions
1. Baby Gabriella claps her hands after her mother does. Gabriella is displaying __________.
- A. reinforcement
- B. classical conditioning
- C. observational learning
- D. adaptation
Correct answer: C
Rationale: Observational learning is when an individual learns by watching others and mimicking their actions or behaviors. In this scenario, Baby Gabriella claps her hands after her mother does, indicating she is learning through observing her mother's behavior and imitating it. The other choices are incorrect: Reinforcement typically involves a consequence that strengthens a behavior, classical conditioning is a type of learning where an association is made between two stimuli, and adaptation refers to the process of adjusting to new conditions.
2. In ecological systems theory, how does Toby's move just before entering fourth grade represent a significant change in his life?
- A. Microsystem
- B. Mesosystem
- C. Exosystem
- D. Chronosystem
Correct answer: D
Rationale: In ecological systems theory, the chronosystem refers to the dimension of time and how events and transitions over time can influence an individual's development. Toby's move just before entering fourth grade represents a significant change in his life that falls under the chronosystem. The microsystem involves the immediate environments and relationships that directly influence an individual, the mesosystem relates to connections between these environments, and the exosystem includes external settings that indirectly influence the individual, such as parents' workplaces. Therefore, Toby's move best exemplifies a change in the chronosystem due to the temporal influence on his development.
3. It is difficult to isolate the precise damage caused by illegal drugs during pregnancy because __________.
- A. most drug-using mothers refuse to participate in teratology research
- B. the majority of babies born to drug-using mothers do not survive for more than a few days
- C. most drug-using mothers quit using illegal drugs during the first trimester of pregnancy
- D. drug users often take several drugs, display other high-risk behaviors, and suffer from other stresses
Correct answer: D
Rationale: The difficulty in isolating the precise damage caused by illegal drugs during pregnancy is due to the fact that drug users often take several drugs, display other high-risk behaviors, and suffer from other stresses. This makes it challenging to identify the specific impact of each individual factor on prenatal development. Choices A, B, and C are incorrect because they do not address the complexity of the situation involving drug users during pregnancy. Most drug-using mothers refusing to participate in teratology research, the majority of babies not surviving, or drug-using mothers quitting during the first trimester do not directly explain the difficulty in isolating the precise damage caused by illegal drugs during pregnancy.
4. If pregnancy does not occur, the corpus luteum shrinks, and the __________.
- A. cells begin to duplicate
- B. one-celled zygote multiplies and forms a blastocyst
- C. germinal period lasts only about two weeks
- D. lining of the uterus is discarded
Correct answer: D
Rationale: If pregnancy does not occur, the corpus luteum will shrink. As a result, the lining of the uterus is discarded through the process of menstruation. This shedding of the uterine lining is what causes menstrual bleeding. Choices A, B, and C are incorrect because they do not describe the physiological response of the body when pregnancy does not occur. The corpus luteum shrinking and the subsequent shedding of the uterine lining are part of the menstrual cycle, not processes related to cell duplication, zygote multiplication, or the duration of the germinal period.
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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