Viruses multiply by:
a. Binary fission.
b. Replication in the host cell
d. Sexual reproduction
Viruses that attach bacterial cells are known as _____________________.
Which of the following diseases are caused by viruses? (Mark more than one.)
b. Typhoid fever.
e. Yellow fever.
Which of the following characteristics apply to rickettsiae?
a. Smaller than viruses.
b. Obligate parasites.
Multiply by binary fission.
d. Smaller than typical bacteria.
e. Normally transmitted through arthropods.
Normally pathogenic to arthropod hosts.
g. Uniform in shape within species.