Which best explains why doctors advise their patients to be vaccinated against the flu each year?

The flu vaccine is developed based on the virus identified as causing the particular strain of flu that year.

The flu vaccine becomes more effective over time.

The flu vaccine is developed to last for only two months.

The flu vaccine given each year combines the fluvaccines given over the past five years.

Which best describes the reproductive differences between bacterial infections and viral infections?

Viruses multiply using a host, while bacteria a re produced by way of binary fission.

Viruses multiply by asexual reproduction, while bacteria reproduce inside a host.

Viruses multiply by developing into endospores, while bacteria reproduce by way of binary fission.

Viruses multiply by way of conjugation, while bacteria reproduce by developing into endospores.

On Monday, Kari exhibits 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?

Kari was infected with the virus before she experienced any symptoms.

Kari was immune to the virus but infected the other students.

The virus mutated and infected the other students after Kari got sick.

The virus was a carrier, and the other students were infected after Kari got sick.

Which best contrasts an epidemic and a pandemic?

An epidemic affects a small population of humans, while a pandemic affects a large population of humans.

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.

How is a human infected with influenza different from a tick spreading Rocky Mountain spotted fever?

The human is a carrier, and the tick is a vector.

The human is a vector, and the tick is a carrier.

The human is a vector, and the tick is a parasite.

There is no difference in how the diseases spread; both are vectors.

Which is the best method for preventing a parasitic disease?

Avoiding contaminated food and water

Limiting physical contact with others

Which statement best describes fungi?

All fungi attack plant tissue but not animal tissue.

Why are diseases transmitted through the bites of infected animals not considered contagious diseases?

The person in direct contact with the infected animal is the only one infected.

The infected animals do not show symptoms.

Humans does not become sick from animal diseases.

The diseases are treatable with antibiotics.

Microbiology

Biology

8th Grade

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20 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the smallest pathogen?

Virus

Bacteria

Fungus

Tapeworm

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which was most likely classified as a pandemic?

People in eleven states were sickened after eating beef contaminated with the E. Coli bacteria. The tainted beef was traced to a meat-packing plant.

Two camps, in close proximity to each other, experienced an outbreak of cholera. The infection was traced to contaminated drinking water.

A measles outbreak in Indiana was attributed to children whose parents did not have them vaccinated for measles.

During 1918 to 1919, an estimated 20-40% of the world's population suffered from the Spanish flu.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

Pathogen

Parasite

Vector

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A village has an outbreak of cholera. Which would be the easiest way for a neighboring village to prevent the cholera epidemic from spreading to their village?

Develop a cholera vaccination.

Quarantine all individuals infected with cholera.

Avoid contaminated water, or treat contaminated water before drinking it.

Restrict travel to other villages that are farther away.

Which product would be most effective in preventing the spread of a cold virus?

Hand soap

Mouth Wash

Cough Drops

Antibiotic cream

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What characteristic of viruses distinguishes them from cells?

They do not have hereditary material (DNA).

They are not separated from their environments.

They lack an independent metabolism, so they need a host in order to reproduce.

Their traits do not evolve in response to selection pressures.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Many diseases transmitted by vectors lead to the death of millions of people in the world. Which best explains why African countries are harder hit than other regions of the world?

increased number of insects

increased climatic variations

increased ecosystem changes

increased pressure from human activities

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Microbiology

What is the smallest pathogen?

Which was most likely classified as a pandemic?

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?

A village has an outbreak of cholera. Which would be the easiest way for a neighboring village to prevent the cholera epidemic from spreading to their village?

Which product would be most effective in preventing the spread of a cold virus?

What characteristic of viruses distinguishes them from cells?

Many diseases transmitted by vectors lead to the death of millions of people in the world. Which best explains why African countries are harder hit than other regions of the world?

Which best explains why doctors advise their patients to be vaccinated against the flu each year?

Which situation would most favor the spread of infectious disease?

Which best describes the reproductive differences between bacterial infections and viral infections?

Access all questions and much more by creating a free account

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