Answer:
The correct answer is Alarm Reaction or Alarm Stage. 
Explanation:
Alarm stage is also called as a fight and flight stage. During this stage, our brain sends signals to all the parts of the body and informs the body that some emergency situation has arised. 
Due to this emergency situation, our heart starts beating faster which in turn sends more blood to the various parts of the body, adrenals glands enhances the release of stress hormone called cortisol and our body receives a kick of adrenaline rush which in turn boosts energy. 
 
        
             
        
        
        
Answer:
Definitely a doctor!!! Option D!
Explanation:
 
        
             
        
        
        
The frontal lobe is responsible for reasoning.
        
                    
             
        
        
        
The answer is Aerobic exercise (such as swimming, running, climbing)
BrAiNlIeST
 
        
             
        
        
        
Answer:
Explanation:
Active - the process of exposing the body to an antigen. Exposing the body will generate an adaptive response that takes a few days or weeks to develop and can be life long lasting.
Passive - it is provided when we are given antibodies to disease. Instead of producing the antibodies with the immune system, they are given. Like a newborn baby acquires immunity from the placenta.
Natural - it works to fight off pathogens before they begin an active infection. Sometimes it is not enough to stop the pathogen or the pathogen exploits the immune response and gets to the cells.