Which of the following statements about communication among bacteria is correct?

A. At lower population density, a higher concentration of signaling molecules is typically observed.
B. Unlike eukaryotes, in bacterial communication no receptor molecule is required.
C. Small peptides can stimulate a DNA uptake response.
D. Cellular communication in bacteria is based on the same principles as communication within multicellular organisms.


C,D

Biology & Microbiology

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The change in the chromosomes depicted between the top and the bottom in the figure above

represents a(n) ____.

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Which tissue type allows the body to detect

and respond to internal and external changes?

a. nervous b. adipose c. epithelial d. connective e. skeletal muscle

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Are all species introductions the fault of humans? What will be an ideal response?

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Which virus can cross the placenta and affect the fetus, causing spontaneous abortion or serious fetal damage?

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