Multiple sclerosis results from an autoimmune disease that primarily involves

A) destruction of the hippocampus.
B) destruction of myelin sheaths.
C) destruction of regions of the motor cortex.
D) deterioration of parts of the spinal cord.


Answer: B

Biology & Microbiology

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Which of the following organic molecules is commonly used for energy storage?

A. proteins and nucleic acids B. lipids and carbohydrates C. nucleic acids and lipids D. carbohydrates, nucleic acids, and lipids E. proteins, carbohydrates, and lipids

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In the cell, energy released by electrons is often used to phosphorylate ________.

A. ATP B. NAD C. oxygen D. ADP E. pyruvic acid

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Clear evidence of bipedalism in human ancestors is demonstrated by "Lucy," an individual who lived about ____

million years ago. a. two b. four c. six d. eight

e. ten

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In any experiment, one must be certain to:

A. use clean glassware B. have the hypothesis at hand C. include a suitable control group D. wear lab coats and safety glasses

Biology & Microbiology