Answer:
I believe that the answer would be 39 and 78
 
        
             
        
        
        
they need energy because there cells need to reproduce  
 
        
             
        
        
        
I would say D! Purely because it is looking at the effects of humans (therefore related to topics more geographical).
Hope that helps. :)
        
             
        
        
        
The set of characteristics provided by Audesirk and Audesirk are: Animals are multicellular. Animals are heterotrophic, obtaining their energy by consuming energy-releasing food substances. Animals typically reproduce sexually. Animals are made up of cells that do not have cell walls.
        
                    
             
        
        
        
The right answer is D. renal regulation.
Among the many factors that modulate tension (vessels, heart strength, blood volume ...), the kidney plays a vital role because it makes an enzyme called renin that helps increase blood pressure and it regulates the outflow of sodium and water, which contribute to the elevation or diminution of blood pressure in the arteries.