What are the openings in the periderm of some plants called?
a. stomata
b. fistulae
c. lenticels
d. gonopores
c. lenticels
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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
Cell-mediated immune responses protect against
a. viruses. b. bacteria. c. fungi. d. cancer cells. e. all of these
If the sequence for one strand of DNA is 3?-TCGATT-5? then its complementary strand would have a sequence of 3?-AGCTAA-5?.
Answer the following statement true (T) or false (F)
Immersion oil can be used to increase the resolution achieved with some microscope lenses because it increases the ________ between the specimen and the objective lens.
A. optical density and refractive index B. neither optical density nor refractive index C. optical density D. refractive index