Which microorganism is considered phytoplankton?
A. Sulfate reducers
B. Nitrogen fixing bacteria
C. Cyanobacteria
D. Mycorrhizae
Answer: C
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Both Chagas' disease and African Sleeping Sickness are ________-borne diseases.
What will be an ideal response?
Which s elhants and crickets have in common?
A. DNA nucleotides form the basis of inherited life, with cells that are formed spontaneously from the environment. B. DNA nucleotides form the basis of all inherited life, with cells that are formed from other cells. C. RNA nucleotides form the basis of all inherited life, with cells that are formed from other cells. D. RNA nucleotides form the basis of inherited life, with cells that are formed spontaneously from the environment.
The sigma factor that mediates a global heat shock response in E. coli is
A) sigma 70. B) sigma 32. C) sigma 34. D) sigma 72. E) sigma 36.
The development of virulent, toxin-producing bacterial strains due to the presence of a temperate phage can occur in
A. generalized transduction. B. specialized transduction. C. bacterial conjugation. D. transformation. E. All of these choices are correct.