Sierra's parents are amazed by her development. She has gone from rolling over to now sitting up by herself. Her parents are anticipating the day she will begin crawling around their apartment. If she follows the normal developmental milestones of an infant, Sierra is most likely ____.
A. 5 months of age
B. 7 months of age
C. 9 months of age
D. 11 months of age
Answer: B
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Young children’s brains are described as being very plastic. This means that their brains are ____.?
a. ?made of a different type of cellular material that changes with age b. ?very changeable and adaptable c. ?very easily damaged by trauma d. ?very tough and durable
A sudden change in the molecular structure of a gene, called a(n) ________, may occur spontaneously or may be caused by an environmental event such as radiation
a. devastation c. mutation b. deviation d. alteration
Which of the following statements is true about the role of heredity in physical growth?
A) When diet and health are adequate, heredity has little effect on height and rate of growth. B) Even if negative environmental influences are not severe, children show little catch-up growth once conditions improve. C) Twin studies reveal that genetic makeup has little effect on body weight. D) Genes influence growth by controlling the body's production of and sensitivity to hormones.
Grandparents under 65 are more likely to display a ________ style of grandparenting.
A. distant B. remote C. formal D. fun-seeking