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- From my point o veiw, this anwer is either A, B, C, D, or E, so where is the answer? Hopefully, you didn't get paid or recycled the answer from Chegg, CourseHero or such,In a laboratory setting, E. coli has a doubling time of 20 minutes.a) What is its growth rate, r?b) Assuming you start with only 2 cells, what will be the bacterial population after 24hourshave passed?10. Peat is a compact layered mass of mummified plant detritus that has collected over geological time and has been transformed by biochemical activity, water immersion, and the effect of heat and pressure. true or false
- The organophosphate Azinphos-methyl has a96-hour LC50 value of 3 ppb for rainbow trout. Inan unfortunate incident, 200 g of this pesticidewas sprayed on a field, and a subsequent heavyrainfall washed 35% of it into a nearby lakehaving a surface area of 30,000 m2and anaverage depth of 0.5 m. Would the pesticideconcentration in the lake water have beensufficient to kill a significant fraction of therainbow trout in the lake?53. Which one of the following bacteria group CANNOT survive in presence of oxygen? Group of answer choices obligate aerobes obligate fermenters facultative aerobes anaerobes microaerophiles aerotolerant 54. Identify the MISMATCH pair from the following, Group of answer choices E.coli :::: facultative aerobe group Bacteroides :::: obligate anaerobes none of the above is a mismatched pair Chlamydia sps :::: cell culture for cultivation Gardnerella sps :::: bacterial vaginosis Staphylococcus sps :::: can tolerate 20 % salt; cause pimples Rickettsias :::: obligate intracellular parasiteEven though scientists have demonstrated success in using genetically modified bacteria to detect explosives, why is this method of mine-finding still considered a, "work in progress"? Write at least 4 sentences
- please explain why the answer is 3 thoroughlyA species of bacteria has a doubling time of 24 hours. After incubating the initial population for one week, the final population was 6,400 cells. What was the initial population of that bacteria? Show all work. Equations: Nt = No x 2n Final concentration = (initial concentration)/(total dilution factor) Total dilution factor = (individual dilution factor)# of serial dilutionsWrite an abstract of the article below in Results (around 3-4 sentences): RESULTS AND DISCUSSION For the duplicate sets of reactors in experiments A and B, reactors inoculated with Pond 1 started gas formationsooner and peaked earlier than the Pond 2 and Horse Dung reactors. For both sets of reactors, the reactor seeded with pond bottom soil obtained from Pond 1 had the highest methane generation rate, as well as the largest cumulative volume of methane, followed by Pond 2 and finally the reactor seeded with Horse Dung, as shown in Figure 1(A) and (b) below. The possible reason is that Pond 1 is an older pond compared to Pond 2, and the bottom soil obtained from the Pond 1 may have more stable organic matter accumulated as well as higher nutrient concentrations, leading…
- I need The brief explanation and the predicted results for each organism in the list.Using the knowledge on biological wastewater treatment , what conclusion would you derive from the data given at the end? Parameter Unit TAI-I-11 1007 TAI-E-11 1007 AIR-I-11 1007 AIR-E-11 1007 CB-I-11 1007 CB-E-11 1007 COL-I-11 1006 COL-E-11 1006 MAC-I-11 1006 MAC-E-11 1006 SS mg/L 204 28 40 16 36 26 196 132 132 122 COD 503 83 256 149 156 63 437 234 459 269 BOD5 266 28.0 102 52.8 72 14.6 232 89.2 168 55.2 NH3-N 23.6 14.8 30.7 18.3 14.2 0.5 20.1 4.0 21.3 18.5 TP 6.4 3.2 10.9 7.6 3.0 1.9 4.2 2.4 4.6 4.5 TN 43 29 45 30 19 10 29 15 27 25 Fecal Coliforms (FC) MPN/ 100 mL 1.4x104 8x102 2x103 1.7x103 3.4x104 8 4x103 23 1.7x104 9x103 Color Unit Pt/Co 191 45 283 187 154 26 108 37 138 57 pH 7.34 7.59 7.62 7.64 7.15 7.79 7.03 7.46 7.35 7.32 Note…I need help answering this queshtion based on the answer in the article you are whitin a bacterium travelling from the outside of a Gouda wheel through the rind and into the core. What can you say about the chemical environment of the areas you pass through? https://bmcmicrobiol.biomedcentral.com/articles/10.1186/s12866-018-1323-4