Biology, 30.03.2020 23:17 KayleighMorganhopkin
1. You are given the task to quantify the bacteria in your soil sample. You do a 10-fold serial dilution of your soil sample in sterile water and plate 1/10 of each subsequent (serial) dilution in LB agar plates with cycloheximide β an antifungal and eukaryotic cell inhibitor. If your 10β6 (ten to the minus sixth) dilution plate contains 97 bacterial colonies after two days of incubation, how many bacteria can you estimate were present in your initial soil sample (1 g of soil)? Show your calculation and briefly describe each step.
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Select all the correct answers. lactobacillus is a bacteria that live inside humans. these bacteria live on the nutrients from our bodies. they to keep our gut clean and healthy. s. typhi is a bacteria that enter our bodies through contaminated food. this bacteria causes infections in the body. based on this information, which two statements about the association between these bacteria and humans are true? a. lactobacillus shares a parasitic relationship with humans. b. s .typhi shares a parasitic relationship with humans. c. both lactobacillus and s. typhi share a parasitic relationship with humans. d. both lactobacillus and s. typhi share a mutualistic relationship with humans. e. lactobacillus shares a mutualistic relationship with humans, and s. typhi shares a parasitic relationship multiply chrse
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1. You are given the task to quantify the bacteria in your soil sample. You do a 10-fold serial dilu...
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