Afourth method is called , which involves a vesicle that forms from the enterocyte's cell membrane, engulfing the nutrient and then drawing the nutrient into the cell.

Answer;

Endocytosis

A fourth method is called endocytosis, which involves a vesicle that forms from the enterocyte's cell membrane, engulfing the nutrient and then drawing the nutrient into the cell.

Explanation;

-Endocytosis is the process of capturing a substance or particle from outside the cell by engulfing it with the cell membrane, and bringing it into the cell. Cells absorb molecules or substances from outside the cell by engulfing it with the cell membrane.

-There are three primary types of endocytosis: phagocytosis, pinocytosis, and receptor-mediated endocytosis.

-Phagocytosis is also called cell eating and involves the intake of solid material or food particles. Pinocytosis, also called cell drinking, involves the intake of molecules dissolved in fluid. Receptor-mediated endocytosis involves the intake of molecules based upon their interaction with receptors on a cell's surface.

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.

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