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Unit 5 Review
Test Description: 8.L.1.1 and 8.L.1.2
Instructions: Answer all questions to get your test result.
1) Malaria is a common disease in many countries. What is the cause of this disease?
A
a parasite
B
a bacterium
C
a fungus
D
a virus
2) How can the rate of an infectious disease be drastically reduced?
A
by performing dental hygiene three times each day
B
by wearing clean clothing daily
C
by preventing transmission between peopl
D
by taking medication daily
3) Ten people became sick with the flu after attending a school dance. What is the scenario that could best explain how the people got sick?
A
contact with environmental sources
B
contact with an infected animal
C
contact with a contaminated object
D
contact with an infected person
4) Which is the best way to help prevent the flu from becoming a pandemic?
A
getting a vaccination
B
eating fruits and vegetables
C
washing hands often
D
taking antibiotics
5) Why do doctors suggest that people get a flu vaccine each year?
A
Viruses replicate more rapidly over time.
B
Viruses can mutate from year to year.
C
Vaccines get stronger over time.
D
Vaccines are absorbed by the body after a year.
6) A city has an outbreak of a disease that affects an unusually large portion of its population at the same time. Which term best describes the outbreak?
A
infection
B
plague
C
pandemic
D
epidemic
7) A mosquito can spread the West Nile Virus but remains unaffected by the disease. Which best describes the mosquito?
A
parasite
B
mutagen
C
pathogen
D
vector
8) Which has made the possibility of an epidemic becoming a pandemic much more likely in the 20th century?
A
increased global travel
B
increased air pollution
C
increased vaccinations
D
increased deforestation
9) How are quarantines used to slow the spread of an epidemic?
A
Quarantines allow enough time for antibiotics to take effect in infected individuals.
B
Quarantines keep people inside their homes so that family members can provide care for each other.
C
Quarantines prevent individuals from eating food that is potentially contaminated.
D
Quarantines keep infected individuals separate so they cannot pass the disease to others.
10) Which best compares bacteria and viruses?
A
Bacteria have genetic material, but viruses do not.
B
Bacteria are living organisms, but viruses are not.
C
Bacteria are smaller than viruses.
D
Bacteria cause disease, but viruses do not.
*select an answer for all questions
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