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- Explain the changes in the amount of nitrate and carbon dioxide in the graph below. Guide questions: What happens during immobilization? What happens during mineralization?Indicate which of the following involves osmosis by answering yes or no.1. A fresh potato is peeled, weighed, and soaked in a strong salt solution. The next day it is discovered that thepotato has lost weight.___________Explain the mechanism by which cells sample extracellular fluid.