Baby Lindsay has combined her reaching, grasping, and sucking schemes into a higher-order scheme that allows her to reach for her pacifier and put it into her mouth. This achievement is an example of

Which of the following is a clinical feature of mania?

a. elated mood b. criminality c. dissociation d. blunted affect

Jolie has sickle-cell trait, a temporary, relatively mild form of sickle-cell anemia, but does not have full-blown sickle-cell anemia. Her condition is most likely the result of

a. incomplete dominance between one allele for normal blood cells and one for sickle-shaped cells. b. two recessive alleles for sickle-shaped cells. c. a dominant sickle-shaped cell allele and a recessive normal blood cell allele. d. two dominant alleles for normal blood cells.