Multiple sclerosis is a disease in which the myelin sheath is destroyed. What will happen to nerve conduction speed in affected neurons?
A) It will slow down dramatically.
B) It will speed up dramatically.
C) It will speed up just a little bit.
D) There will be no effect.
A
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Which drawing in the figure above depicts an atom with six valence electrons?
A) A B) B C) C D) D E) E
Compare and contrast the life cycles of the cellular and the acellular slime molds
What will be an ideal response?
In analyzing microarray data if the ratio of mRNA present before and after a particular treatment is 1 it indicates that
A. there was no change in mRNA levels before and after treatment B. the gene was not expressed either before or after treatment. C. gene expression could not be detected. D. mRNA was not detected before treatment.
What is the basis of the food chains in pelagic ecosystems?
a. Detritus b. Zooplankton c. Phytoplankton d. Seaweeds