The peripheral nervous system is involved in both <u>voluntary and involuntary actions.</u>
Explanation:
The peripheral nervous system (PNS) is the neural system that resides outside the central nervous system (CNS). This contains nerves which in turn connect with the organs of the body like the sensory organs, glands, blood vessels, muscles etc with the central nervous system (CNS).
The PNS is divided into somatic and autonomic nervous systems. 
The somatic nervous system contains sensory and motor nerve fibers which send sensory information and controls motor functions respectively. The voluntary movements of skin, skeletal muscles, bones, and joints are controlled by somatic PNS.
The autonomic nervous system composed of sympathetic, parasympathetic and enteric nervous systems controls the involuntary actions of smooth muscles of the internal visceral organs.  
 
        
             
        
        
        
Explanation:
Hey there!
- The main function of cell is to <u>make</u><u> </u><u>a</u><u> </u><u>life</u><u> </u><u>possible</u><u> </u><u>in</u><u> </u><u>the</u><u> </u><u>universe</u><u> </u><u>by</u><u> </u><u>performing</u><u> </u><u>various</u><u> </u><u>type</u><u> </u><u>of</u><u> </u><u>vital</u><u> </u><u>activities</u><u>. </u>
 - Various type of cell performes various type of activities. The same type of cell combine together to form tissue. Similarly, similar tissue combine and form organ. Now, Organs combinly form form a system and all system form a whole body. They combinly perform task for sustaining life in the universe. 
 - <u>Cancer</u><u> </u>are caused mainly due to abnormal growth of cells. It shows various type of symptoms. Such as;
 
- The wounds donot heal faster, instead it may be worse.
 - Unwanted bleeding may occur from nose, mouth, or other parts.
 - You may see lump in some parts of body.(Thickness of skin).
 - They also may have problem of hair loss in more amount.
 
<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
 
        
             
        
        
        
Um... neeeed details plz!
        
                    
             
        
        
        
The three steps in the process of dna replication are initiation, elongation, and termination.