It is a sphere to be precise.
Because of the omnidirectional nature of the gravitational attraction, mass tends to form spheres in the macro scale of planets and similarly massive celestial bodies.
 
        
                    
             
        
        
        
Answer:
Prey
Explanation:
The aphids are the prey of the ladybug.
 
        
                    
             
        
        
        
The answer is “Variation that decrease reproductive success are more likely to be passed on.”