Hydrogen bonds connecting base pairs must be broken.
        
             
        
        
        
Fixator (--) helps hold a bone in place
        
             
        
        
        
Answer:
depending on what organisms you're talking about
Explanation:
an example would be phyto and zoo plankten. zoo plankteon eat phyto plankton which eat sunlight. those are two organisms
 
        
                    
             
        
        
        
Answer:
A
Explanation:
The correct option that does not describe the science of nutrition would be <u>that many studies have been conducted on the association between certain types of cancer and diet and, therefore, these links are well-understood</u>.
<em>While truly indeed many studies have been conducted linking certain types of cancer and diet, scientists are far from understanding the link between diets and cancer. While some degrees of understanding exists, it is not 100% certain that there is a cause-effect relationship between these two factors, and a large percentage of cases of cancer are caused by factors that cannot be controlled.</em>
The correct option is, therefore, A.