First comes non-rem sleep, followed by a shorter period of rem sleep, and then the cycle starts over again
        
             
        
        
        
True because the smoke is more harmful for the people around the smoker but as long as they don’t smoke around them it’s okay
        
                    
             
        
        
        
Answer:
The thoracic cavity
Explanation:
The thoracic cavity is the anterior ventral body cavity found within the rib cage in the torso. It houses the primary organs of the cardiovascular and respiratory systems, such as the heart and lungs, but also includes organs from other systems, such as the esophagus and the thymus gland.