May 20 B

Which sentence BEST describes a pandemic?

• The disease causes high fever and vomiting.

• The disease passes through direct contact with an infected person.

• The disease is fatal if not treated immediately.

• The disease has spread to every country in the Northern Hemisphere.

Which disease is correctly paired with the cause of the disease?

• athlete’s foot - fungi

• malaria - viruses

• influenza - bacteria

• pneumonia - protists

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?

• contact with environmental sources

• contact with an infected animal

• contact with a contaminated object

• contact with an infected person

Malaria is a common disease in many countries. What is the cause of this disease?

• a virus

• a bacterium

• a fungus

• a parasite

If a microbe lacks the basic cellular structure to reproduce, how does it make copies of itself?

• by creating new cells

• by combining an egg and a sperm

• by using the structures of the host cell

• by dividing the nucleus to make two new microbes

The bacteria that causes bubonic plague is transmitted to humans by fleas. Which term best describes the role of the fleas in transmitting bubonic plague?

• decomposer

• parasite

• pathogen

• vector

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?

• pandemic

• plague

• epidemic

• infection

Which best explains how a virus infects its host?

• The virus must fuse with the cells of the host organism.

• The virus must circulate in the blood of the host organism.

• Viral nucleic acids must enter the cells of the host organism.

• Viral proteins must inactivate the proteins of the host organism.

Which aspect of modern life could MOST likely cause an epidemic to turn into a pandemic?

• vaccination

• transportation

• communication

• sanitation

Which is most important when investigating ethical issues in biotechnology?

• cost of the technology

• advantage of the technology

• public opinion of the technology

• benefits of the technology outweighing the harm