11.
what is a disease that can be caused by a virus or bacteria?

influenza

pneumonia

strep throat

common cold
12.
this cancer treatment uses chemicals to kill cancer cells.

hormone therapy

chemotherapy

radiation therapy

immunotherapy
13.
if you believe you may have an std, you should

search the internet for answers.

try a home remedy.

go to a doctor or health clinic.

become abstinent.
14.
you only need to use sunscreen if the temperature outside is above 80 degrees.

true

false
15.
there is no guaranteed way to protect yourself from ever developing a communicable disease.

true

false

Which of the following best reflects what we know about how the flu virus moves between species? a) the flu virus in a pig is mutated and replicated in alternate arrangements so that humans who eat the pig products can be infected.b) a flu virus from a human epidemic or pandemic infects birds; the birds replicate the virus differently and then pass it back to humans.c) an influenza virus gains new sequences of dna from another virus, such as a herpesvirus; this enables it to be transmitted to a human host.d) an animal such as a pig is infected with more than one virus, genetic recombination occurs, the new virus mutates, the virus is passed to a new species such as a bird, and the virus mutates again and can now be transmitted to humans.