It increases because the higher you go in the food chain, the bigger the carnivores or consumers are. 
 
        
             
        
        
        
Answer:
viruses are at the borderline of living and non-living organinsms outside the body of living host they are non-active and they cannot grow without their host
Explanation:
 
        
                    
             
        
        
        
The ileocecal valve prevent the back flow of materials from the large intestine to the ileum of the small intestine.
        
             
        
        
        
The correct answer is A. 20.2 s
Explanation:
The table shows there were three trials to measure how much time a toy car needs to move 1 meter on different surfaces. Now, to find the average time on a surface simply add the results of the three trials and divide this by number 3 (number of trials). The process to know the average time on dirt is shown below:
20 + 19.2 + 21.5 = 60.7 - Results of each of the trials
60.7 ÷ 3 = 20.2 s - Divide the total by the number of trials
This means the average time for the toy to move on dirt was 20.2s
 
        
             
        
        
        
The best answer to fill in the blank would be A).