A 20-week-old fetus can __________.

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: B

Rationale: People born during the baby boom between 1946 and 1964 tend to be alike in ways that set them apart from people born at other times due to history-graded influences. These influences refer to the events and conditions that are common to a particular historical era and can significantly shape the development and experiences of individuals who live through them. The post-World War II era, economic prosperity, and social changes during the baby boom period are examples of historical events that have had a lasting impact on this generation.

Correct Answer: D

Rationale: Increasingly, researchers see development as a perpetually ongoing process. This perspective emphasizes that development continues throughout the lifespan, rather than stopping at a particular age like adolescence. Researchers now focus on understanding how individuals change and grow over time, recognizing that development is a lifelong journey influenced by both biological and environmental factors.

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: C

Rationale: The yolk sac is an extraembryonic membrane that plays a significant role in the early development of the embryo. One of its functions is to produce blood cells until the organs are mature enough to take over this function. This process occurs during the early stages of prenatal development to support the growing embryo before it can sustain itself independently.

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: D

Rationale: High doses of caffeine contained in coffee and tea have been linked to an increased risk of low birth weight. Consuming large amounts of caffeine during pregnancy can interfere with the baby's growth and development, leading to a lower birth weight than expected. It is important for pregnant women to limit their caffeine intake to reduce the risk of complications such as low birth weight.

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: B

Rationale: Freud's theory was the first to stress the influence of the early parentƒ¢¢â€š¬¢â‚¬â„¢child relationship on development. Sigmund Freud's psychoanalytic theory emphasized the importance of the child's interactions with caregivers, particularly during the early stages of development, in shaping personality and behavior.