Mutualism is relationship that is beneficial to both organisms involved. The relationship between a plant and a bacterium called a mutualism because both of them help each other. Bacteria are involved in increasing the fertility of the soil by fixing atmospheric nitrogen and thus provide plant with nitrogen. In return, the bacteria make their homes in what usually become nitrogen "nodules" along plant roots. The plant gets food, the bacteria gets shelter, everybody wins.
        
             
        
        
        
Answer:
Starch
Explanation:
Any member of a class of enzymes that catalyze the hydrolysis (splitting of a compound by addition of a water molecule) of starch into smaller carbohydrate molecules such as maltose (a molecule composed of two glucose molecules).
 
        
             
        
        
        
Cells Can Replicate Their DNA Precisely. Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. DNAreplication is one of the most basicprocesses that occurs within a cell.
        
                    
             
        
        
        
Answer:
It adapts to the changing climate
Explanation:
Species have to acclimatise to changing climate to enable them survive
A means of adaptation is key for survival of species during climate change 
If species do not have acclimatisation strategy, they would not be able to survive the changing climate