The nucleus? budding is when two cells reproduce asexually
        
                    
             
        
        
        
Answer:
They are the species which are found only in a particular area. They can be a plant, animal or microorganism. They are at great danger of becoming extinct due to the following reasons: - As they are restricted to a particular area so loss of their habitat is the major reason which could lead to extinction.
Explanation:
 
        
             
        
        
        
pelvic blades rotated inward
 
        
             
        
        
        
It's an important part of the bird's ability to maintain its body temperature.  
Air is a poor conductor of heat, so the air trapped among the feathers 
prevents the loss of heat in cold atmosphere, and prevents overheating 
in hot atmosphere.  Much like our wearing several layers of clothing.