BIO 250 Microbiology QUIZ 3 - {2023} | BIO250 Microbiology QUIZ 3 - A Grade

Question 1 Correct 4.50 points out of 4.50 When microbes live independently but cooperate and share nutrients, it is called ______. Select one: a. symbiosis b. antibiosis c. mutualism d. synergism The correct answer is: synergism 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 Question 2 Correct 4.50 points out of 4.50 The correct answer is: mutualisticThe phase of the bacterial growth curve in which the rate of multiplication equals the rate of cell death is the ______. Select one:!a. lag phase b. exponential phase c. stationary phase d. death phase!e. telophase Question 3 Correct 4.50 points out of 4.50 The correct answer is: stationary phase The phase of the bacterial growth curve that shows the maximum rate of cell division is the ______. Select one: a. lag phase!b. exponential phase c. stationary phase d. death phase!e. prophase Question 4 Correct 4.50 points out of 4.50 The correct answer is: exponential phase- - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - -Question 19 Incorrect 0.00 points out of 4.50 The correct answer is: NonsenseQuestion 20 Correct 4.50 points out of 4.50 The term 'recombinant organism' refers to Select one: a. an organism that expresses proteins coded for by genes that originated in a different organism. b. an organism that has recombined its genes. c. an organism that has genes passed down from the parent cell to the daughter cells during binary ssion. d. genetically engineered cells, but not those that have new genes as a result of horizontal gene transfer. The correct answer is: an organism that expresses proteins coded for by genes that originated in a different organism.