Answer:
The answer would be C) Nitrogen 
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I would help but this is the type of project to do on your own. I'd suggest planning out the image then building from there, or use graphs on the internet for inspiration. I wish you luck though :>
 
        
             
        
        
        
Answer:
The robins build a nest to protect their young from predators and the egg falling out of the nest.  Robins wil take care of their young by feeding them until they’re old enough to survive on their own and fly from the nest.  The baby birds usually stay in the nest but do fall if the nest is built in an unsafe enviroment.
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Answer:
An organism's DNA affects how it looks, how it behaves, and its physiology. So a change in an organism's DNA can cause changes in all aspects of its life. Mutations are essential to evolution; they are the raw material of genetic variation. Without modification, growth could not occur. i hope this help 
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