The disappearance of the deer indicates A. Intraspecific Competition
 
        
                    
             
        
        
        
because the doctor might not have studied her enough to diagnosed her
 
        
             
        
        
        
Answer:
Hitched a ride or Humans brought it and planted it.
Explanation:
 
        
                    
             
        
        
        
Number 3 and 4 are the correct answers hope this helped
        
             
        
        
        
The pulmonary vein carries oxygenated blood from the lungs to the left atrium