Diatoms are used for four of the following. Which one is the exception?
a. biofuels
b. ink
c. filters
d. cleaners
e. insecticides
ANSWER: b
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As a youngster, you drive a nail in the trunk of a young tree that is 3 meters tall. The nail is about 1.5 meters from the ground
Fifteen years later, you return and discover that the tree has grown to a height of 30 meters. About how many meters above the ground is the nail? A) 0.5 B) 1.5 C) 3.0 D) 15.0 E) 28.5
The most important aspect of agar that makes it a useful ingredient for solidifying media for bacterial culture is
A. It provides an excellent carbon and energy source for bacteria. B. Bacteria are unable to break it down so it stays solidified. C. It melts at 100oC and solidifies at temperatures below 50oC. D. It provides an excellent nitrogen source for bacteria.
All eicosanoids are synthesized from
a. cholesterol. b. arachidonic acid. c. prostaglandin. d. thromboxane A.
What is the best term describing a sudden spike of new cases of 'meningitis' disease among a group of Aggies?
A. Enzootic B. Epidemic C. Zoonosis D. Epizootic E. Endemic