Which of these is NOT a location where you might find members of the phyla Chlorobi, Chloroflexi, or Cyanobacteria?
A. Sulfide-rich mud on lake bottoms
B. Deep ocean thermal vents
C. "Blooms" on lakes
D. Microbial mats
Answer: B
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What hydroelectric alternative generates electricity without greatly disrupting the river's flow?
A. Hydroelectric dam B. Photovoltaic cell C. Reservoir hydropower D. Run-of-river technique E. Wind generation
DNA methylation is the only known natural modification of DNA. It affects
A. cytosine bases. B. thymine bases. C. guanine bases. D. adenine bases.
Cross-sectional survey are conducted over a ____ period of time.
a. short b. long
The neural circuit that allows a male stickleback fish to orient and behave aggressively towards an inanimate object with a red stripe is an example of a(n)
A. stimulus-response chain. B. supernormal stimulus. C. innate releasing mechanism. D. sign stimulus. E. fixed action pattern.