1. you have performed a serial dilution of a sample with an unknown concentration of microorganisms. you counted 73 cfu on a countable plate inoculated with 0.1 ml of a 10-3 dilution. what was the population density of the original sample per milliliter? 2. compare and contrast the plate count methods for bacterial and viral populations. 3. many of the quantitative methods discussed are popular because they enable the microbiology researcher to selectively count live cells only. why do you think this might be an important or desirable feature in a medical or environmental research situation? provide a scenario in which it might not be important to differentiate between live and dead cells when counting cell numbers.
Answers: 1
Chemistry, 23.06.2019 00:30
Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg
Answers: 2
Chemistry, 23.06.2019 13:50
Which compounds are the brønsted-lowry bases in this equilibrium: hc2o4– + h2bo3– h3bo3 + c2o42– ? a. h2bo3– and h3bo3 b. hc2o4– and h3bo3 c. hc2o4– and c2o42– d. h2bo3– and c2o42– e. hc2o4– and h2bo3–
Answers: 2
Chemistry, 23.06.2019 15:30
Acontainer holds 6.4 moles of gas. hydrogen gas makes up 25% of the total moles in the container. if the total pressure is 1.24atm. what is the partial pressure of hydrogen
Answers: 3
1. you have performed a serial dilution of a sample with an unknown concentration of microorganisms....
Chemistry, 21.09.2019 08:30
Mathematics, 21.09.2019 08:30
Biology, 21.09.2019 08:30
Chemistry, 21.09.2019 08:30
Mathematics, 21.09.2019 08:30
Mathematics, 21.09.2019 08:30
History, 21.09.2019 08:30