It provides the reader with your topic and give them a central idea of your writing. 
 
        
             
        
        
        
Answer:
The definition of an organism is a creature such as a plant, animal or a single-celled life form, or something that has interdependent parts and that is being compared to a living creature. An example of an organism is a dog, person or bacteria.
Explanation:
I didn't really get what you were asking so there's the definition. :)
 
        
                    
             
        
        
        
The answer is the process in which carbon dioxide is used also forms glucose.
Glucose is a simple sugar with the molecular formula C₆H₁₂O₆. Glucose is the most abundant monosaccharide, a subcategory of carbohydrates. Glucose is mainly made by plants and most algae during photosynthesis from water and carbon dioxide, using energy from sunlight.
 
        
                    
             
        
        
        
Answer:
 this is a common ... saw incredible similarities between birds and the theropod dinosaurs (especially ... Like all other reptiles, birds have scales (feathers are produced by tissues similar to ... for theropods are often more serious for the "thecodont" pseudo-hypothesis.
Explanation: