True because <span>In ecology, a niche is a term describing the relational position of a species or population in its ecosystem to each other
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1. The group nearest the end or with the shortest stem of a phylogenetic tree has evolved most recently. In this case it is eutherians.
2. The group with the longest stem has been around the longest: fish
3. A direct common ancestor will share the same immediate line, like marsupials and eutherians. Fish and marsupials do not have a common direct ancestor. 
 
        
                    
             
        
        
        
The answer would be salt hydrolysis.
Salt that was made from the combination of weak and strong acid/base could be hydrolyzed and forming another substance. The hydrolysis process will separate the H2O into H+ and OH- and the weak part of the salt will take one of the ions(weak base will take OH-, weak acid will take H+). The result would be increased H+( or OH- ion, leading to change in pH of the solution.
        
             
        
        
        
The answer of this question would be Chloroplasts
        
             
        
        
        
The statement is true. DNA replication process happen during the cell cycle.