Among the choices provide above, the issue-oriented interest group promotes environmental causes is the Sierra Club. <span>The Sierra Club is an environmental organization in the United States. It was founded on May 28, 1892, in San Francisco, California, by the Scottish-American preservationist John Muir, who became its first president.</span>
        
             
        
        
        
Answer:
The tests in the frog's reproductive system are attached to the kidney :3
Explanation:
:3
 
        
             
        
        
        
I believe the answer is: Durkheim
In durkheim's social solidarity model, social solidarity is divided into mechanical solidarity and organic solidarity. 
The mechanical solidarity is created by following a same tradition/ritual as a member of a certain social group, while organic solidarity is created through the division of labor.