________ produce myelin in the peripheral nervous system, while ________ produce myelin in the central nervous system.
A. Nodes of Ranvier; dendrites
B. Axons; oligodendrocytes
C. Dendrites; axons
D. Schwann cells; oligodendrocytes
Answer: D
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Place the steps in the correct order to reflect how a lethal dose may be determined. _____ Dilutions of virus are made to represent a range of concentrations. _____ Inoculated host cells are observed and the number of dead cells are counted. _____ The dilution which killed 50% of the tissue culture cells is identified. _____ Dilutions are inoculated into susceptible tissue cultures (or susceptible host organisms).
Fill in the blank(s) with the appropriate word(s).
Dr. Robinson tapped on a patient's knee with the little hammer, but failed to see the usual kick of the patellar reflex. Since this reflex only involves a few neurons, what part of the nervous system might the doctor most likely be concerned about?
A. parasympathetic nervous system B. central nervous system C. sympathetic nervous system D. peripheral nervous system Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content/Choose Answer · What do you already know about components of the nervous system? What other information is related to the question? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of the following lipids would you expect to find associated with chloroplast membranes?
A) phosphatidylserine B) glycosphingolipid C) monogalactosyldiacylglycerol D) galactocerebroside E) hopanoids
Polar body biopsy can be used to test for genetic disorders in sperm. Indicate whether the statement is true or false