Which of the following statements concerning biofilms is FALSE?
A) They consist of assemblages of cells enclosed in a matrix of molecules.
B) They are composed of bacteria but not archaea.
C) They require communication and signaling among cells.
D) An example is the film that develops on unbrushed teeth.
E) They increase the chances for survival of cells in the biofilm.
Correct Answer:
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Q1: Prokaryotic flagella differ from eukaryotic flagella in
Q2: Prokaryotes that use inorganic compounds rather than
Q3: Structures called _ connect two cells and
Q4: The glycocalyx is a:
A)type of bacterial plasmid.
B)convoluted
Q6: The cell walls of Bacteria differ from
Q7: Which of the following statements about the
Q8: Which of the following processes is NOT
Q9: Which of the following is the uptake
Q10: In the photosynthetic purple bacteria, photosynthesis occurs
Q11: The oldest known fossils of prokaryotes are
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