Fission takes place when an animal divides into two parts, and an isotope capable of undergoing fission is called a fissile isotope . Given these facts, what are capable of dividing into two parts among the following options:
- epidermis and dermis
 - colors of the spectrum
 - rays or beams
 - bacteria
 - fissile isotopes
 - critical organs
 - objects that have mass
 - the body's largest organ


 

     fissile isotopes    