One of the main differences between natural killer cells and T cells is that natural killer cells ____
a. attack normal tissue
b. attack several kinds of intruders
c. are cancer cells
d. are more specific in their targets
b
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Long-term research on children who were in Project Head Start indicates that
a. while early changes in IQ are rare, significant increases in IQ are seen during the college years. b. compensatory programs like Head Start lead to poorer attitudes about achievement. c. children in these programs are more likely to end up in special education classes than their peers. d. participation in such programs may reduce the likelihood of teenage pregnancy.
According to Erikson, what does stagnation affect?
a. identity c. integrity b. socioeconomic status d. self-esteem
The dependent variable is the factor that a researcher believes influences the behavior of interest.
Answer the following statement true (T) or false (F)
The old saying "damned if you do and damned if you don't" most resembles a(n) ________ conflict
a. double approach/avoidance b. approach/avoidance c. approach/approach d. avoidance/avoidance