Consumers are living beings in a food chain that eat creatures from a particular species. 
        
             
        
        
        
Scientific law. For example, Law of Universal Gravitation.
        
                    
             
        
        
        
Answer:
Galaxies rotate in their center with parts of galaxies that are far away from centre.
Explanation:
Galaxies move throughout the space. It rotates around its center with the portions of galaxy that are far from the center and moves relatively slowly from other objects near the center. 
Because of the Big bang explosion because of which the Universe have expanded, galaxies are going away from other galaxies. The galaxy cluster also moves around the cluster center.
 
        
             
        
        
        
The right answer is the option a, part of a binary system<span>. A binary system is two astronomical bodies which orbit one around each other due to the gravitational atraction that they mutually exert on each other. . On the other hand, Sun is a yellow star, a main sequence star and of average absolute magnitude. </span>
        
                    
             
        
        
        
 <span>. over a long period of time </span>