The dramatic change in the development of the human species that took place during the Upper Paleolithic period was that, for the first time, _______
a. brains got larger
b. tools were created
c. art appeared
d. jaws got larger to eat a wider variety of plants
Answer: C
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Pluripotentiality refers to
a. simultaneous talents. b. an individual's ability to perform two activities at the same time. c. the concept that any one center in the brain can be involved in several functional systems. d. the possibility of multiple intelligences.
Most young mammals stop nursing, at least partly, due to the loss of what ability?
a. metabolizing the sugar in milk b. sucking sufficiently c. the Babinski reflex d. digesting the fat in milk
The tendency of participants in research to present themselves in the best light reflects:
a. initial impression formation b. evaluation apprehension c. self-consciousness monitoring d. open-ended questions e. none of the above
Which statement concerning the sickle-cell trait is true?
A. Individuals with the trait have the dominant phenotype but possess the recessive genotype. B. Individuals with the trait have both a dominant and recessive allele for the disorder. C. Individuals with the trait are genetically predisposed to the disorder but cannot display any symptoms. D. Individuals with the trait tend to have the most severe form of the disease.