4/28/2018 - Homework 2 - Agents of Disease

Occurs when an infectious disease spreads rapidly to many people in one region.

• Epidemic
• Outbreak
• Pandemic
• HIV/AIDs

A global disease outbreak is a _________.

• Epidemic
• Pandemic
• Outbreak
• Species

Vaccines are used to_______________ diseases.

• Prevent
• Mutate
• Carrier
• Global Travel

Transmission of a disease from one infected person to another.

• Carrier
• Vector
• Contagion
• Pathogen

Why are viruses considered to be nonliving organisms?

• They do not have genetic information.
• They are not able to move on their own.
• They do not interact with their environment.
• They are not able to reproduce without a host cell.

How does the structure of a virus compare to that of a bacterium?

• They are both multicellular and living.
• They are both single-celled and nonliving.
• The virus is nonliving so it has no cells, whereas the bacterium is single-celled.
• The bacterium is nonliving, so it has no cells, whereas the virus is single-celled.

Which pair correctly matches a vector and the infectious disease it carries? 

• human – influenza
• opossum – rabies
• mosquito – malaria
• flea – Lyme disease
  

Diseases that can be transmitted between organisms are

• infectious.
• inherited.
• environmental
• congenital.

Which tool is most responsible for preventing future pandemics of smallpox?

• worldwide vaccination for smallpox
• global education about smallpox
• better worldwide urban sanitation
• improved global quarantine facilities

Which best compares an epidemic and a pandemic?

• An epidemic is caused by bacteria, while a pandemic is caused by viruses.
• A pandemic is spread by humans, while an epidemic is spread by insects and rodents.
• A pandemic occurs in a small region, while an epidemic occurs in a much larger region.
• An epidemic affects a small population of humans, while a pandemic affects a large population of humans.