So they all got LEU, SER 
Three first got GLU at the sam place
The one least related must be organism number 4.
Hope that helped.
        
             
        
        
        
Answer:
Length of the cells = diameter of field of view/ number of cells across the field of view
Explanation:
therefore   2.25= 4.5*X
X= 2.25/4.5
=0.5 number of cells
 
        
             
        
        
        
B.  Protists more closely resemble members of other eukaryotic kingdoms than they do other protists.
Explanation:
It is difficult for scientists to classify protists into one kingdom because they closely resemble member of other eukaryotic kingdoms than they do other protists. 
The protists have a wide variations among themselves that makes them very difficult to classify. 
- Protists have a wide-range of diversity within them and they flaunt every rule used to classify them. 
- Protists have also shown characteristics of different kingdoms between them. 
learn more: 
Kingdom of life brainly.com/question/5186929
#learnwithBrainly
 
        
             
        
        
        
Plants use photosynthesis
        
                    
             
        
        
        
Answer:
What impact do the available amounts of energy, water, and oxygen have on an ecosystem? They act as limiting factors. ... increasing the biodiversity of the ecosystem.