Science Grade 8 - 8.L.1.2 - Quiz 2

1. Which illness is spread by eating food that has been contaminated by bacteria?

  1. Botulism
  2. Influenza
  3. Tuberculosis
  4. Lyme disease

2. Scientists are trying topreventan epidemicof a highly contagious disease. What information should the scientists study first?

  1. how the disease reproduces
  2. the treatment of the disease
  3. the symptoms of the disease
  4. how the disease is transmitted

3. Which would most likely aid in the prevention of an epidemic?

  1. drinking lots of fluids
  2. isolating infected individuals
  3. researching non-infectious diseases
  4. taking antibiotics before symptoms start

4. Which is the main risk associated with being a disease carrier?

  1. A carrier can unknowingly spread the disease to others.
  2. A person is more difficult to cure if he or she is a carrier.
  3. A person is more likely to die once he or she becomes a carrier.
  4. A carrier can use up all the available medicine in a local area.

5. Which antibiotic was developed from a fungus and has been used to cure many illnesses that could have led to epidemics?

  1. Aspirin
  2. Ethanol
  3. Penicillin
  4. acetaminophen

6. Which action would most quickly reduce the spread of an infectious disease?

  1. isolating all carriers
  2. improving sanitary conditions
  3. restricting population growth of the vector
  4. increasing the population density of humans in the are

7. On Monday, Kariexhibits no symptoms of a viral illness. She is sick on Tuesday and stays home from school. On Wednesday, her friends stay home with the same illness, despite having no contact with Kari when she was sick on Tuesday. Which is the most likely explanation of how the other students became sick?

  1. Kari was immune to the virus but infected the other students.
  2. The virus mutated and infected the other students after Kari got sick.
  3. Kari was infected with the virus before she experienced any symptoms.
  4. The virus was a carrier, and the other students were infected after Kari got sick.

8. Which best compares an epidemic and a pandemic?

  1. An epidemic is caused by bacteria, while a pandemic is caused by viruses.
  2. A pandemic is spread by humans, while an epidemic is spread by insects and rodents.
  3. A pandemicoccurs in a small region, while an epidemic occurs in a much larger region.
  4. An epidemicaffects a small population of humans, whilea pandemicaffects a large population of humans.

9. Which illness is most likely to spread throughout the world and infect the most people?

  1. chicken pox
  2. Influenza
  3. Malaria
  4. measles

10. How are quarantines used to slow the spread of an epidemic?

  1. Quarantines prevent individuals from eating food that is potentially contaminated.
  2. Quarantines allow enough time for antibiotics to take effect in infected individuals.
  3. Quarantines keep infected individuals separate so they cannot pass the disease to others.
  4. Quarantines keep people inside their homes so that family members can provide care for each other.