(Solved): 1. Circular, single-stranded RNA; depend on plant viruses to replicate; worsen symptoms of virus on ...

1. Circular, single-stranded RNA; depend on plant viruses to replicate; worsen symptoms of virus on which they depend. 2. Circular, double-stranded DNA elements in some bacteria; not part of the bacterial chromosome. Replicons 3. Minute infectious agents composed entirely of protein. Virusoids 4. Circular, single-stranded RNA, small Viroids genome, generally plant pathogens; no protein coats; discovered by Theodor Diener. Virophages 5. True viruses, but very small and Prions thus called 'subviral agents;' use the host cell and another virus as factory for replication. Pandoravirus 4. Circular, single-stranded RNA, small genome, generally plant pathogens; no protein coats; discovered by Theodor Diener. Virophages 5. True viruses, but very small and thus called 'subviral agents;' use the host cell and another virus as factory for replication. Pandoravirus 6. Extrachromosomal elements in Plasmids Archaea. 7. Examples of cellular life. 8. Class 1 , with a large dsDNA genome; found in amoeba associated with eye infections that result from poor contact-lens hygiene.