What illness, when contracted by a pregnant woman, increases the risk of miscarriage?
a) chicken pox
b) mumps
c) syphilis
d) AIDS
b
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Over the years, scientists have attempted to teach American Sign Language (ASL) to various primates. The best estimate of the number of signs these animals can successfully understand is closest to ________.
A. zero B. 500 C. 1,000 D. 3,000
Which one of the following scenarios best demonstrates the concept of hermeneutics?
a. A parole officer obtains urine specimens from several parolees and has them analyzed for evidence of substance abuse. b. Guards in a prisoner-of-war camp analyze the out-going mail of prisoners to determine if an escape attempt is being plotted. c. A supervisor of graduate student teachers administers a questionnaire to students to determine the effectiveness of student-teachers. d. The director of a day care center observes and records the interactions among the children to identify potentially aggressive ones.
What causes muscles to twitch?
A. depolarization of the muscle fiber produced by an influx of sodium ions B. depolarization of the muscle fiber produced by an influx of potassium ions C. hyperpolarization of the muscle fiber produced by an influx of calcium ions D. hyperpolarization of the muscle fiber produced by an outflow of potassium ions
The branchlike structures that receive input from other neurons are called
A) dendrites. B) synapses. C) neurotransmitters. D) colostrum.