The answer is elevation :)
 
        
             
        
        
        
Answer:
Heterotrophs
Explanation:
Autotrophs are organisms that are able to use a source of energy such as sunlight, to produce their own food. Heterotrophs cannot produce their own food and must rely on the foods they ingest for energy. 
 
        
             
        
        
        
Answer:
A
Explanation:
I hope this helps. Sorry if i'm wrong.
 
        
             
        
        
        
Answer:
The endocrine functions of the pancreas and liver coordinate efforts to maintain normal blood glucose levels.
 
        
             
        
        
        
Answer:
1. Birds have feathers of different colours. 
2. Woodpeckers have long beaks. 
3. Sunbird is a non-migratory bird. 
or
3. Sunbird is sedentary bird. 
Explanation:
hope this helps and is right :)
p.s. i really need brainliest.