Pollution affects species diversity, thus the species richness of a highly polluted stream is __________
compared with that of a nearby pristine stream.
a. low
b. high
c. no different
d. more dense
e. complex
A
Biology & Microbiology
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a. True b. False
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One of the most common brain injuries is
a. epilepsy. b. encephalitis. c. meningitis. d. concussion. e. Alzheimer's disease.
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A specimen has been prepared for viewing with a transmission electron microscope, using uranyl acetate as a negative stain. The area stained by the uranyl acetate will be ________ electron dense compared to specimen itself.
A. equally B. less C. more
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