Sometimes, there is debate about where one should draw the line between what is alive and what is not alive.
Sometimes, there is debate about where one should draw the line between what is alive and what is not alive. F10PE, identify these particles which are smaller than viruses.  A. These plant pathogens consist of a few hundred bases, as compared to the smallest infectious viruses and lack the protein coat typical of viruses, are often spread by seeds, and often lack the AUG initiation codon.
Sometimes, there is debate about where one should draw the line between what is alive and what is not alive.
Viroid