The spectrum of color visible to humans ranges from 350 nm to 750 nm. Light that most of us perceive as ________ is at 750 nm.
A. blue
B. red
C. green
D. orange
Answer: B
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Which general category of statistical methods is intended to answer questions about populations by using sample data?
a. parameters b. statistics c. descriptive statistics d. inferential statistics
The primary function of microglia is to a. digest debris
b. provide a structural matrix for neurons. c. participate in forming the blood-brain barrier. d. form myelin in the central nervous system.
A female who has normal stature, but delayed language, and motor development could have which of the following disorders?
a. Klinefelter's syndrome c. Turner's syndrome b. XYY complement d. XXX syndrome
Research indicates that, for an adolescent, spending unsupervised time after school with friends is most problematic when the
A. friends frequently lie to their parents. B. adolescent is involved in a structured activity. C. adolescent is easily susceptible to peer pressure. D. adolescent is in a romantic relationship.