The figure below is from Vandputte, et al., Applied and Envi…

The figure below is from Vandputte, et al., Applied and Environmental Microbiology, January 2010, Vol. 76: p. 243-253. They used Chromobacterium violaceum (A) and Pseudomonas aeruginosa (B) to examine the effects of the leaf and bark extracts (extracted using DMSO) from a tree (Combretum albiflorum). All of the wells have acyl homoserine lactones added and each row has three wells with the same samples (triplicate). The blue color in A is due to production of violacein, a pigment. The red color in B is due to pyocyanin production, a substance that is toxic to eukaryotic cells. The *** indicates this bar is significantly different from the DMSO (solvent control) bar. Question: What kind of system seems to be regulating the production of these colored substances? How does this system work? Why would they measure not only the production of the colored substances but also bacterial growth? What statement can you make regarding this figure? (What can you say about the leaf and bark extracts and which you would most prefer for what and why?)    

The Renaissance can be traced to originating in one specific…

The Renaissance can be traced to originating in one specific city. There they developed the characteristic style of using restrained classicism, proportion and ratio to which the art and architectural era is known. Which city is known as the birthplace of the Renaissance? (SLO 5)

Below is a dataset of employee productivity scores (units pr…

Below is a dataset of employee productivity scores (units produced per hour) before and after a training intervention. Dataset: Quiz2_data.xlsx The dataset contains: Column A: Employee ID Column B: Pre-training productivity Column C: Post-training productivity Using Excel: Calculate descriptive statistics (mean, median, standard deviation) for both pre- and post-training scores (5 points) Perform a paired samples t-test to determine if there was a significant improvement (5 points) Write a brief recommendation to management about the effectiveness of the training program based on your analysis (5 points) Report your responses below and clearly label your answers. Be sure to follow the proper reporting format we discussed in class!