Sara contracted rubella (German measles) in the eleventh week of her pregnancy. Emily contracted rubella during the thirtieth week of her pregnancy. The difference in the way rubella would affect an unborn child at these two times is an example of which of the following?
A. continuous change
B. discontinuous change
C. a critical period
D. a sensitive period
Answer: C
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Solve the equation for the unknown quantity.y/4 + 1 = 9
A. -32 B. -34 C. 32 D. 34
Determine the indicated term of the given recursively defined sequence.a1 = 4, a2 = 12, ak+2 = ak+1 + 8; a4
A. 12 B. 20 C. 36 D. 28
Complete the identity.cos ? - cos ? sin2 ? = ?
A. sin ? B. cos3 ? C. sec2 ? D. tan2 ?
Which approach to understanding cognitive development is currently at the forefront of research, utilizing our understanding of genes and brain activity?
A. behavior modification B. social-cognitive C. cognitive neuroscience D. neo-Piagetian