The last Ice Age, when glaciers covered large parts of Europe and much of the northern United States, occurred during the __________.What do scientists believe was theprimary contributor to the dramatic changes experienced during the Neolithic period?
a) Upper Paleolithic periodclimate change
b) Lower Paleolithic periodagricultural disease
c) Neolithic periodhuman intervention
d) Civilized periodanimal overpopulation
Answer: a
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What is a source of financial vulnerability for people in late adulthood?
A. gambling B. reliance on fixed income C. poor investments D. cost of living
____ is best explained by the wear-and-tear theory of aging
a. AIDS b. Joint deterioration during osteoarthritis c. Misshapen blood cells in sickle-cell disease d. Alzheimer's disease
Robin has basic sensory, cognitive, and motor structures that allow her to see, pick up, and move her toys. When she shakes her rattle and it makes a pleasing sound, her mother laughs and says, "Good girl.". Later, Robin picks up the rattle again, watching her mother for a positive reaction. According to the Theory theory, Robin is
a. testing her predictions based on previous experience. b. gazing and concentrating. c. seeking parental warmth. d. acting on an innate understanding of the world.
Which of the following statements about language development during middle childhood is true?
A) Vocabulary growth is much slower in middle childhood than in early childhood. B) School-age children's more reflective, analytical approach to language permits them to appreciate the multiple meanings of words. C) English-speaking children use the active voice more frequently than the passive voice during the school years. D) Children's use of the passive voice leads to a change in their humor.