Answer: There will be change in the tube in which E.coli will be incubated and there will be no change in the test tube in which Shigella is incubated
Explanation:
Lactose Fermentation Test is done to see which bacteria ferments lactose. pH and color indicator is attached to observe the change. The pH goes slightly down because of formation of Acid and due to this reason a color change is also seen during this test.
As E.coli typically ferments lactose so there will change in color and pH in the test tube incubated with E.coli, while there will be no change in the test tube incubated with Shigella.
The process of osmosis can be reversed by altering or changing the pressure gradient is referred to as the true statement and is therefore denoted as option B.
<h3>What is Diffusion?</h3>
This is defined as the net movement of molecules from a region of higher concentration to that of a lower concentration and doesn't need the presence of a membrane for it to occur.
Osmosis on the other hand requires the presence of a selectively permeable membrane and the process can be reversed by changing the pressure gradient which is therefore why option B was chosen as the most appropriate choice.
Read more about Osmosis here brainly.com/question/2625460
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They break down organic matter into nutrients for other organisms.
<h3><u>What is the role of decomposers in ecosystem?</u></h3>
Saprophytes like fungus and bacteria are decomposers. They rely entirely on the dead and decomposing organic debris to survive. Decomposers are crucial to the ecology because they assist in recycling nutrients so that plants may utilise them again.
The function of a decomposer in the ecosystem is as follows:
- By disintegrating dead plants and animals, they first serve as a purifying force for the environment.
- They aid in the nutrient recycling.
- By allowing the dead to decay, they provide room in the biosphere for new life.
- For the benefit of reuse by producers like crop plants, they assist in reintroducing the various elements to water, soil, and air.
To view more questions about ecosystem, refer to:
brainly.com/question/896544
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Hello,
I think the answer is Downstream.
Hope this helps!!!! (:
Answer:
It wil swell and burst
Explanation:
"pure" water is only H2O so there are no solutes, because of osmosis, water will enter the red blood cell that does contain solutes until the cell and the surrounding environment (in this case the water) are iso-osmotic, this will never happen though because the water contains no solutes.