Oxidative phosphorylation of the Aerobic respiration pathway.
        
                    
             
        
        
        
An increase in A produces and increase in X
This is a positive feed back mechanism. This mechanism enhance or amplify changes. This tends to alter the balance away from equilibrium because one hormone will increase the release of the other hormone. An example of this is the child birth. During labor, oxytocin is released to increase the uterine contraction the release of oxytoocin will be induced by the contractions of uterus. This will go on until the child was born. Just remember positive feedback enhance the original stimulus.
        
             
        
        
        
Answer:
9. C
10. D
11. B (Im not sure about this one but I think its right)
12. Cant see 12
13. C
14. D
Explanation:
 
        
             
        
        
        
Answer:
 Kingdom, phylum, class, order, family, genus, and species.
Explanation:
The science of classifying living things is called taxonomy. Linnaeus introduced the classification system that forms the basis of modern classification. Taxa in the Linnaean system include the kingdom, phylum, class, order, family, genus, and species. Linnaeus also developed binomial nomenclature for naming species.