Biology, 21.02.2020 19:14 chaseashley24
When quantifying microbial populations and growth, it is important to pick the right method. Understanding the advantages and disadvantages of each method with various types of samples can mean the difference between valid and meaningful data and a failed experiment. Many times, especially with environmental samples, it is best to use multiple methods to quantify the same sample to increase the validity and reliability of the results. Match the samples below with the method of bacterial quantification that is best suited to that type of sample. There are many more methods available than those listed here, but let us start the discussion with these three. Part Aa. lake waterb. broth culture of E. colic. soil suspensionPart B1. direct microscopic counts of a DAPI-stained, filtered sample.2. viable plate count3. optical density
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Biology, 21.06.2019 23:30
The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2
Answers: 2
Biology, 22.06.2019 04:30
What is used to keep track of the gamates and possible offsprings combination
Answers: 2
Biology, 22.06.2019 07:00
An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?
Answers: 3
When quantifying microbial populations and growth, it is important to pick the right method. Underst...
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