Which human body systems work directly together to allow locomotion?

The skeletal system brain help in locomotion

The skeletal and muscular system. The muscle system provides movement and the skeletal provides support and joint flexion/extension.

Explanation:

2.Which was an effect of industrialization in Latin American nations during the postwar years? 
relocation of millions of workers to cities 

3. Which was not a reason for U.S. intervention in Latin America during the Cold War era? 
the fall of the Soviet Union 

4. Which was not a result of U.S. intervention in Latin America during the Cold War era? 
Communism disappeared from Latin America. <-- 

5. Which Latin American nation was controlled by Augusto Pinochet? 
Chile 

6. Which describes the main purpose of the Organization of American States (OAS)? 
provide a way to encourage regional cooperation in Latin America 

7. Which best describes the rise to power of Mao Zedong? 
Leading an army of rural peasants, he launched a communist revolution. 

8. Which does not describe China's Great Leap Forward? 
the elimination of Confucianism 

9. Who was a key leader in India’s independence movement? 
Jawaharlal Nehru