The matching of each situation to the step in the urine formation process where the problem lies are as follows:
- Step 1: Stella's urine contains protein due to inadequate filtration.
- Step 2: High toxin levels in the blood are due to Secretion. 
- Step 3: Increased Metabolic wastes are due to inadequate Reabsorption. 
- Step 4: The presence of vital Vitamins in urine is due to inadequate Reabsorption. 
Thus, Step 1 belongs to filtration, Step 2 belongs to secretion, and Steps 3 and 4 belong to reabsorption. 
<h3>What is the important function of Nephron?</h3>
The important function of the nephron may include the removal of all waste products through urine, secretion of numerous substances, excess water from the blood, etc. 
Therefore, it is well described above. 
To learn more about Nephron, refer to the link:
brainly.com/question/26062461
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Definition, making a 2d surface appear more 3d
        
                    
             
        
        
        
The right answer is the size.
Crystallization is the operation that consists, of a solution (solvent + solute) or a molten solid, to form a crystallized solid. The solute crystallizes in general in a predefined geometrical form (cubic, face-centered cubic, etc.), including or not solvent molecules (eg pure NA2SO4 or [Na2SO4, 10H2O]). The form or chemical formula of the crystals may depend on the crystallization temperature.
There are two ways of crystallization: The dry way and the wet way (in solution)
In crystallization in solution: the solute is initially in the liquid phase in a solvent. It is crystallized (solidification ordered according to a regular structure) within the solution either by solvent evaporation, or by cooling the solution, or both.
 
        
                    
             
        
        
        
An outlier is the outside character who does not associate itself with thereat of the terms and problem in the sequence.