Pathogens

Lyme disease is spread by ticks that attach to an animal to feed. Which describes the role of the tick?

• The tick is a virus.

• The tick is a donor.

• The tick is a vector.

• The tick is a bacteria.

Which is the most likely reason bacteria populations do not grow at exponential rates in nature?

• Conditions necessary for growth occur for a long time

• Conditions necessary for growth occur only for a short time.

• The environment changes, and conditions are always favorable.

• The environment changes, and conditions are not always favorable.

Which pathogen, by being the smallest, is able to spread and infect the greatest number of hosts?

• bacteria

• fungi

• protists

• viruses

Which is the best explanation for why there is a continued need to develop new antibiotics to fight bacterial infections?

• Bacteria learn to avoid antibiotics that have been used for years.

• Drug companies want to sell as many drugs as they can to consumers.

• Bacteria are constantly mutating and developing resistance to antibiotics.

• Doctors need many drug options to treat many different patients with different characteristics.

Five students get sick with a cold after a weekend field trip to the aquarium with their classmates. Which best explains why these students became sick?

• contact with an infected fish

• contact with an infected person

• contact with contaminated food

• contact with a contaminated water

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

• a virus

• a bacterium

• a fungus

• a parasite

Why do doctors suggest that people get a flu vaccine each year?

• Viruses replicate more rapidly over time

• Viruses can mutate from year to year.

• Vaccines are absorbed by the body after a year.

• Vaccines get stronger over time

Are YOU READY to make a 4 or 5 on your SCIENCE EOG?

• Not at all

• I am halfway ready

• I am almost sure I am READY

• I am 100% ready to make a 4 or 5

Chicken pox is an extremely contagious disease. Which organ is most frequently affected by chicken pox?

• brain

• intestines

• lungs

• skin

Lyme disease is spread by ticks and people affected with Lyme disease often exhibit a rash and symptoms similar to the flu. Which is the cause of Lyme disease?

• a virus

• a toxin

• a fungus

• a bacterium