E. coli bacteria normally live in the human gut and produce vitamin K that the body uses. This is best termed a ______ relationship.Select one:a. parasitic b. saprobic c. antagonistic d. mutualistic FeedbackThe correct answer is: mutualisticQuestion 2Correct4.50 points out of 4.50Flag questionQuestion textTermites are insects that require the protozoan Trichonympha in their gut to synthesize the enzyme cellulase to degrade the cellulose in wood. The protozoan uses the end products of the cellulose breakdown (glucose). This is a(n) ______ relationship.Select one:a. commensualistic b. mutualistic c. parasitic 0qaid=55847590&q03
Subscribe to view the full document.
d. antagonistic FeedbackThe correct answer is: mutualisticQuestion 3Correct4.50 points out of 4.50Flag questionQuestion textAs described in "A Note About Bacterial Reproduction -- and the "Culture Bias,"" the organism Epulopiscium does not divide by binary fission. Rather, each cell increases in size and divides to produce multiple daughter cells that are held within the original cell well. After lysis, those daughters are released to repeat the process. Assuming Epulopiscium could be grown in pure culture in the laboratory in broth and on solid media (it currently cannot), which method would be best for measuring the increase in biomass during growth?Select one:a. Turbidity readings from a spectrophotometer; the increase in biomass will directly vary with the turbidity of the culture. b. The viable plate count; each colony derives from a single cell and the number of colonies equals the number of cells. c. Direct microscopic count; the experimenter can directly count the number of cells and extrapolateto the biomass. d. Chemostat growth; it will prevent the culture from entering the death phase. FeedbackThe correct answer is: Turbidity readings from a spectrophotometer; the increase in biomass will directlyvary with the turbidity of the culture.0
As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.
Temple University Fox School of Business ‘17, Course Hero Intern
I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.
University of Pennsylvania ‘17, Course Hero Intern
The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.
Tulane University ‘16, Course Hero Intern
Ask Expert Tutors
You can ask 0 bonus questions
You can ask 0 questions (0 expire soon)
You can ask 0 questions
(will expire )