Scientists have partially repaired cut spinal cords in rats by establishing "cellular bridges" to close the gap. Strategies used include all of the following EXCEPT
a. coaxing severed nerve fibers to grow across the gap.
b. grafting nerve fibers to fill the gap.
c. injecting stem cells into the gap.
d. lateralizing the severed nerve fibers so they fill the gap.
D
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Megan and Ella, both age 14, are best friends. If you see one of them, you probably see the other with her. How do friendships such as theirs differ between early and late adolescence?
What will be an ideal response?
The difference between a point biserial coefficient and a normal Pearson correlation coefficient is that
a. a point biserial correlation is based on two continuous variables. b. a point biserial correlation is based on one dichotomous variable and one continuous variable. c. a point biserial correlation is based on two dichotomous variables. d. the kind of variable has nothing to do with the issue.
Which item should NOT be included on a list of the three key components of the triangular theory love?
a. Passion b. Intimacy c. Aptitude d. Decision/commitment
Approximately what percentage of cohabiting couples is same-sex?
A) 1 B) 4 C) 11 D) 21