1--Which of the following statements regarding bacteria andviruses is FALSE?

Multiple Choice

• Viruses represent some of the smallest pathogens.

• Bacteria may inhabit a host harmlessly.

• Viruses are able to replicate on their own.

• Bacteria can be found in almost all environments.

--------------

2--If less than 90 percent of the people in a community arevaccinated, vaccine-preventable diseases can rapidly return if adisease is introduced into the community.

Group starts

True or False

--------------

3--Worldwide, the four leading infectious-disease causes ofdeath are pneumonia, diarrhea, tuberculosis, and malaria.

Group starts

True or False

----------------

4--Current practice calls for women to receive Pap tests toscreen for cervical cancer beginning at age 21.

Group starts

True or False

----------------

5--Which of the following heterosexual groups reported thegreatest number of HIV infections in the text's graph?

Multiple Choice

• black women

• white women

• Hispanic women

• black men