Cellular organization, Method of reproduction, Metabolism, Heredity, response to stimuli, homeostasis, adaptation to evolution, and growth and development, 
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The evaluation of their DNA and short tandem repeats will let them know if the birds are related or not. The genetic linkage will provide information about their common ancestry as well as if they belong to the same species, or are closely related species. 
        
                    
             
        
        
        
A scientific theory changes when there is more information available about what the theory covers.
        
                    
             
        
        
        
Answer:
A is the correct option
Explanation:
In the pharmaceutical industry, bacteria are used to produce antibiotics, vaccines, and medically-useful enzymes. 
 
        
                    
             
        
        
        
The correct answer is option B, that is, the sympathetic system prepares the body for stress and activity and the parasympathetic system prepares the body for rest.  
Both the parasympathetic and sympathetic nervous system are the components of the autonomic nervous system that works obligatorily. The sympathetic nervous system holds the key in controlling the body at the time of stress and injury, it is generally regarded as fight or flight. It contracts the muscles of the heart in order to enhance the rate of the heart.  
On the other hand, the parasympathetic nervous system is responsible to monitor the function of the body when it is at rest. It assists in sustaining the homeostasis in the body. It relaxes the muscles of the heart in order to reduce the rate of the heart.