The answer is D, ADP gains a phosphate and that is used to convert to ATP with a product of ATP and water
        
                    
             
        
        
        
Answer:
A concentration gradient occurs when the concentration of particles is higher in one area than another. In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower concentration, until they are evenly spaced.
Explanation:
Hope this helps c:
 
        
                    
             
        
        
        
Answer:
GENES
"genes contain the information needed to make functional molecules called proteins"
the manual is a gene
the bricks are amino acids
and the structures are proteins
 
        
             
        
        
        
The feedback loops communicate with the body to ensure homeostasis.
Answer is A. Feedback Loops 
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