One major function of a monosaccharide<span> is its use for energy within a living organism. Glucose is a commonly known carbohydrate that is metabolized within cells to create fuel. In the presence of oxygen, glucose breaks down into carbon dioxide and water, and energy is released as a byproduct.</span>
        
             
        
        
        
Elephants, who are important grazers, are instrumental in transforming woodlands into grasslands. This has a tremendous impact on other species that depend on the grass for their survival. The significance of the elephant in this example is B. keystone species. 
        
                    
             
        
        
        
Answer; 
 The L-D reactions require light energy and water, and the L-IND reactions require ATP, NADPH and CO2. 
Explanation; 
-Photosynthesis is the process by which green plants use light energy from the sun, water and carbon dioxide to make organic molecules, such as simple sugars. 
-The process takes place in two phases; light dependent stage and light independent stage. 
-During light dependent stage light energy is used to break down water molecules into hydrogen ions and oxygen atoms. 
-Light independent reactions uses CO2 and the ATP and NADPH from light dependent reactions to produce sugar/ glucose. ATP is used to provide the energy for sugar synthesis and NADPH is used for electrons in the reduction of Carbon Dioxide into sugar.
 
        
                    
             
        
        
        
<span>More individuals are produced each generation that can survive.
Phenotypic variation exists among individuals and the variation is heritable.
Those individuals with heritable traits better suited to the environment will survive.
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When reproductive isolation occurs new species will form.</span></span>