Answer:
The sympathetic chain contains a group of cell bodies called the sympathetic chain GANGLIA. This structure contains a second cell body for the sympathetic nervous system, the first in the series being found in the THORACOLUMBAR REGIONS' lateral horn of spinal segments T1-L2. The purpose of the VENTRAL AND DORSAL rami is to carry visceral motor and visceral sensory neurons to and from this sympathetic chain.
Explanation: 
The sympathetic trunks (sympathetic chain, gangliated cord) are a paired bundle of nerve fibers that run from the base of the skull to the coccyx.
See the picture attached.
 
        
             
        
        
        
El sistema de nomenclatura binominal identifica a una especie inequívocamente, pues no puede haber dos especies diferentes con el mismo nombre y evita la pluralidad de nombres comunes con el que se la pueda conocer según el idioma o región, que además pueden nombrar a más de un taxón diferente.
 
        
             
        
        
        
Answer:
this process is called transformation, and for the first time, Frederick Griffith observed this process, but he could not explain it.