Which of the following is an example of direct water usage?
A) home drinking water
B) agricultural irrigation
C) steam generation
D) power plant cooling
A
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The overall purpose of DGGE is to
A) separate genomes that are less than 95% similar. B) measure activity of cells that use DGGE as an energy source. C) detect cells that utilize a specific radiolabeled substrate. D) separate genes of the same length that differ in their denaturing profile due to sequence variation.
Which region is largest in a mammalian brain?
A. cerebral cortex B. brain stem C. cerebellum D. hippocampus
A seedling plant has a section of the stem tip that contains large numbers of cells undergoing mitosis for the purpose of
A. sexual reproduction of gametes, to produce new offspring. B. fertilization of the gametes in order to produce new offspring. C. growth in height of the plant. D. asexual reproduction of gametes, to produce new offspring. E. replication of the DNA in the stem, where new flowers will go through meiosis.
Lichens
A. cannot reproduce B. need a nitrogen source to live C. are parasitic on trees D. are able to live in extreme environments