Answer:
B
Explanation:
theyre all different bcz of genetic variation
 
        
                    
             
        
        
        
A.Structure relates to function, is the answer
        
             
        
        
        
Answer:
<u>B</u>. Physiology
Explanation:
The way in which a living organism or bodily part functions.
The branch of biology that deals with the normal functions of living organisms and their parts.
 
        
             
        
        
        
Answer:  a tiny muscle connected to each hair follicle and the skin. When it contracts it causes the hair to stand erect, and a "goosebump" forms on the skin.