The primary function of ________ is to carry messages away from the central nervous system toward the muscles and glands
a. glial cells
b. interneurons
c. motor neurons
d. sensory neurons
Answer: c. motor neurons
Psychology
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A student researcher wishes to maximize the external validity of his or her research design. What research method should you recommend to him or her?
A) Case study design B) Correlational design C) Experimental design D) Naturalistic observational design
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What is the main function of the umbilical cord?
A) It provides fluid for the amniotic sac. B) It provides the baby's bloodstream. C) It connects the placenta to the embryo. D) It serves no real purpose.
Psychology