Microbes in a biofilm use quorum sensing to
A. attach to surfaces.
B. assess the size of a particular microbial population.
C. transfer genetic material among individual cells.
D. inactivate antibiotic molecules.
Answer: B
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What components of eukaryotic cells leave a fossil record?
A. organelles B. nuclear membranes C. cell walls D. None of these choices are correct.
How will people with the same blood type be related?
A) They are always unrelated. B) They are always related. C) They may or may not be related. D) They always have both alleles in common but are not necessarily related.
Features that are useful for identification of fungal species include ________.
A. ability to produce chlorophyll a B. presence of a membrane bound nucleus C. size, shape color, and number of spores D. All of the choices are correct.
Who authored the book On the Origin of Species by Means of Natural Selection?
A. Jean Lamarck B. Alfred Russel Wallace C. Georges Buffon D. Charles Lyell E. Charles Darwin