The advantages of artificial blood are as follows -  
a)	It is easy to produce large amount of artificial blood and thus it helps in reducing the blood shortages.
b)	The chances of spreading a disease through blood are also reduced as the blood is made in a safe and secure place. Also the full history of artificial blood is known to the doctors.  
 
        
                    
             
        
        
        
Answer:
An adaptation can be viewed as a trait that emerged and developed for a certain condition so as to increases the organism changes of survival or fitness. 
For a trait to be called adaptive, it must have had a positive influence but not majorly a trait that develops in reaction to a certain selection pressure. 
Categorically, a trait is seen as adaptation if it is the aftermath of selection, and adaptive if it is of favourable influence at the existing time.
 
        
             
        
        
        
This information is Quantitative data
        
             
        
        
        
Answer:
<h3>Peripheral nervous system</h3>
The peripheral nervous system (PNS) is divided into the somatic nervous system and the autonomic nervous system. The somatic nervous system (SoNS) is the part of the peripheral nervous system associated with the voluntary control of body movements via skeletal muscles.
 
        
             
        
        
        
Bone found at the lower-back area of the cranium