What is the distinction between bacteria and viruses?
a. Bacteria, composed only of DNA/RNA plus a protein coat, require a host so that the bacteria can grow and divide; viruses are single-celled microorganisms that do not require a host to grow and divide.
b. Bacteria are single-celled microorganisms that do not require a host to grow and divide; viruses, composed only of DNA/RNA plus a protein coat, require a host so that the virus can grow and divide
c. Both bacteria and viruses require a host so that they can grow and divide, but only viruses are composed of DNA/RNA and contain a protein coat.
d. Both bacteria and viruses are single-celled microorganisms that do not require a host to grow and divide, but only viruses are composed of DNA/RNA and contain a protein coat
Question 2
____ has the highest sexually transmitted infection rate in the industrialized world.
a. Denmark c. The U.S.
b. Brazil d. Canada
An example of a two-component regulatory system in bacteria
Viruses, such as the hepatitis B virus shown here, need a host to survive and multiply
Types of Bacteria
Food Poisoning from Staphylococcus Aureus Bacteria
Animal Viruses
Bacteria with Internal Membranes