To provide genetic diversity from parents to offspring through “crossing over” over the genes in prophase.
        
                    
             
        
        
        
Answer:
Fins are limbs.
Explanation:
A limb is considered an appendage of any body. Since a fin is an appendage of an animal body, it is indeed a limb.
 
        
                    
             
        
        
        
A sugar, a phosphate group, and a nitrogen base
        
                    
             
        
        
        
Answer:
the first and second sentence 
Explanation:
 
        
                    
             
        
        
        
The most observable difference is the way in which cytokinesis occurs. In plants a new cell wall is fashioned between the new daughter cells, while in animal cells the cell membrane constricts to pinch the parent cell into daughter cells.