The answer is carbohydrate.
        
             
        
        
        
Explanation:
Microspheres were spherical bodies with metabolic abilities that could successfully sustain their existence. However they did not contain any genetic material. Which means that they could not replicate or pass off their parts to their successive generations. 
But they had no way to evolve since they could not pass off any genetic material to their offspring's. This is why RNA came into existence. RNA enabled an Organism to store its genetic material into nucleic acids, that could be passed on to generations to come. This is also how they could evolve into more complex organisms.
 
        
                    
             
        
        
        
your answer should be “interspecific competition” 
MARK ME BRAINLIEST PLEASE!!!!
 
        
             
        
        
        
Yes. At the top of the hill they have potential energy. while riding down the hill the bike will pick up speed.
        
                    
             
        
        
        
Explanation:
Thermophilic bacteria: a new cause of human disease. ... These bacteria are all gram-negative, nonfermentative, nonsporulating rods, most of which grow better at 42 or 50 degrees C than at 35 degrees C. Some of the bacteria could be implicated as the etiological agents for meningitis, endocarditis, and septicemia.