When the fertilized egg implants somewhere outside the uterus is called ectopic pregnancy 
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Answer:
solute
Explanation:
The cell membrane with an integral molecule that consists of two similar parts with a specific recess. There are many particles in the extracellular fluid. One of these particles is labeled A.
Structure A is a solute
Solute refers to the component which is dissolved in the solvent.
The solvent is the substance in which the solute is dissolved.
 
        
             
        
        
        
prokaryotic cells do not have a nucleus.