Answer:
the different colored liquids would've the manipulated while the amount of hummingbirds that visit is the responding variable.
 
        
             
        
        
        
I believe the answer is fish vertebrates. i hope this helped
        
             
        
        
        
I also need help with this
        
             
        
        
        
MRNA. Messenger Ribonucleic Acid.
        
             
        
        
        
Answer:
 Human Activities and Loss of Habitat.
Explanation:
Hope this helps! ^^