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What happened to the piece of potato after soaking in plain water? Explain your observation based on your understanding of hypotonic enviroment
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- A group of friends went on a hiking trip to Wadi Shab, and while swimming in the Wadi they were amazed by the variety of organisms that they saw in the Wadi and the nearby area. Adnan collected a sample of water from the Wadi, soil, and some colorful rocks because he was interested to see which organisms can be found in each sample.List and describe the phases of the growth curve of a population of bacteria. Explain how a decrease in one environmental factor (choose oxygen, temperature, OR pH for your explanation) might affect the growth curve of that bacterial population.The process by which microbes break down food and paper waste into nutrient-rich humus is called: Question 2 options: A) eutrophication B) sludging C) oxygen recycling D) composting
- Which of the following events is NOT a common among microbes in the air? A. Exposure to UV light. B. Relocated due to updrafts. C. Cellular death due to desiccation. D. Decrease is population due to competition.Please answer,How is it that some organisms can survive in such harsh environments? Provide two specific examples.Which of the following is an example of a symbiotic pair of organisms? Question 3 options: A) elk and deer B) algae and yeast C) orchid and mycorrhizae D) Escherichia coli and Rhizobium
- write an evaluation and discussion using the data and relate to answer the hypothesis. Hypothesis: The garlic cloves wrapped in biodegradable paper and foil will degrade gradually, however, the cloves without packaging will degrade at a faster rate. This is because the wrapped cloves are not being exposed to factors which affect biodegradation such as light and oxygen.Could there be any advantage for a Phytoplankton cell to not minimize the sinking rate? Explain.What is the arthropod's role in disease transmission such as malaria? Question 7 options: a) fomite b) aerosol c) reservoir d) vector
- If prokaryotes were to disappear suddenly, which part of the nitrogen cycle would shut down? Select all that apply Select one or more: a. Nitrification b. Fixation c. Denitrification d. AmmonificationWhich is not a process that occurs in a developed biofilm? A. Absorption of materials from the environment. B. Exponential increase in microbial population. C. Retention of externally released enzymes. D. Competition and cooperation of microbial components.Explain Why bacteria do not cause food-borne illness until they are allowed to grow and increase their population density to a threshold number, like when being left out at room temperature for 12 hours or more. What happens as the bacteria grow in numbers? What do pathogenic bacteria synthesize? How do bacteria know what their population density is?
