A female mosquito acts as a carrier for the organism that causes malaria. The mosquito transfers the organism into the human body as it bites. Which term best describes the mosquito?

The disease strep throat is caused by a bacterial infection. The infected person carries the germs in the mouth and nasal fluid. Symptoms can include a high fever, a sore throat, and a skin rash. Which action could spread the disease?

What would probably happen if Demario shared a drinking glass with his best friend who was sick with the flu and had a fever?

The diagram shows four different microbes.

Which microbe would best be characterized as nonliving?

A group of friends attended a festival where food was served. After the event, several individuals developed the same symptoms: nausea, vomiting, and stomach cramps. The table shows the foods eaten and the people who became sick.

Which explanation most likelydescribes how the people became sick?

The diagram shows one common shape for a virus.

What is the principle role of the structures indicated by the arrows?

The diagram shows the amount of bacteria present at several time points as it divides.

Which number most accuratelypredicts the amount of bacteria that would be counted at 80 minutes?

A student became ill on three occasions throughout the year. Each time, he was prescribed the same antibiotics since he was diagnosed with the same illness. What will likely happen if the student becomes ill again, and the same antibiotics are prescribed?

Use the diagram to answer the question.

The previously uninfected human becomes infected with Malaria. Which term best describes the mosquito?

Which action would prevent the spread of infectious diseases?

Ben became sick with the symptoms of a runny nose, sore throat, and fever. His doctor prescribed antibiotics to help him recover. What most likely caused Ben's illness?

What vector is most likely to carry the West Nile virus?

Which statement is true about the influenza virus?

Which statement about viruses is true?

Penicillin is an antibiotic that destroys bacteria by attacking the cell wall. Which statement describes why penicillin is ineffective on viruses?

Which microbe has both a cell wall and cytoplasm?

A female mosquito acts as a carrier for the malaria-causing organism, Plasmodium. The mosquito transfers the organism into the human body as it bites. Which term best describes the type of disease caused by Plasmodium?

Which situation could result in Lyme disease?

Swine flu is a respiratory illness found in pigs. Humans become infected with swine flu when they come in contact with infected pigs. Swine flu was first reported in Mexico in March 2009.

Which statement indicates the pandemic nature of the swine flu infection after it was first reported?

A viral disease has an expected rate of infection of 15%. In one state, 40% of the population is infected with the disease. Which category best describes the disease?

Pandemics spread around the world much faster now than they did in the past. Which technological advancement is most responsible for this increased speed?

The table gives details of different disease outbreaks.

Which disease was an epidemic?

Which factor categorizes a disease as a pandemic?

In what way does a pandemic differ from an epidemic?