Answer:
These results show that the body regulates its salt and water balance not only by releasing excess sodium in urine, but by actively retaining or releasing water in urine. The advantage of this mechanism is that the long-term maintenance of body fluids isn't as dependent on external water sources as once believed.
 
        
             
        
        
        
 Six molecules of carbon dioxide plus six molecules of water plus light energy converts to six molecules of oxygen plus sugar, Thus, the correct option is A.
<h3>
What is photosynthesis?</h3>
Photosynthesis is the process through which plants use sunlight to create their own nourishment. Through a sequence of reactions, light energy from the sun is turned into chemical energy, which is then stored in the form of food.
In the presence of sunlight, 6 molecules of carbon dioxide (CO2) and 6 molecules of water (H2O) react to form 1 molecule of glucose sugar. During photosynthesis, 6 molecules of oxygen are formed in addition to glucose.
The following is a balanced chemical reaction for photosynthesis:
    
                                      Sunlight
6CO2    +              6H2O  —---------> C6H12O6 +     6O2.
(carbon                (water)                  (glucose)       (oxygen)  
dioxide)
For more information regarding photosynthesis, visit:
brainly.com/question/3529377
#SPJ1
 
        
             
        
        
        
You mean histology right??
Histology:
Histology, also microanatomy, is the ponder of the life structures of cells and tissues of plants and creatures utilizing microscopy.
 
        
                    
             
        
        
        
Answer:
 Multi-step process
Because it can be done twice or more