Well, biotic factors are living things in an ecosystem such as animals or insects. Abiotic factors are non living things in an ecosystem such as sunlight or temperature. I would say biotic factors would be more harmful since this includes bacteria or other diseases, not many abiotic factors would pose a great threat to the entire human species. Hope this helped.
        
             
        
        
        
U still have school its summer
        
             
        
        
        
true
Explanation:
they are called that just cause 
 
        
                    
             
        
        
        
TCA ATG CGT IS THE ANSWER.
Hope it helps. please ask if want more info and if you liked, mark brainliest also it will give you points.