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The body excretes lysozyme to decrease the chance of infection by bacteria entering through skin pores and hair follicles.

A) True
B) False

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The main factors believed to influence bacterial resistance are


A) poor hand washing, and frequency of resistance genes among bacteria.
B) the rate of bacteria growth, and poor hand washing practices.
C) overuse of antibiotics, and human evolutionary changes.
D) the frequency of resistance genes among bacteria, and antibiotic overuse.

E) All of the above
F) A) and D)

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Some people oppose vaccinations because they believe the risks associated with the vaccines themselves are too great.

A) True
B) False

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White blood cells that recognize and destroy virus-infected cells or cells that have become cancerous are known as ________ cells.

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Viruses are able to replicate and multiply on their own.

A) True
B) False

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Which of the following statements about antibiotic resistance in bacteria is FALSE?


A) Antibiotic use is not a factor in antibiotic resistance.
B) Bacteria can only pass resistant genes on to their progeny.
C) Resistant genes arise naturally in bacteria.
D) Bacteria can share resistant genes with other bacteria.

E) All of the above
F) A) and D)

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Hepatitis C most severely affects which area of the body?


A) heart
B) kidneys
C) liver
D) small intestine

E) None of the above
F) C) and D)

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Which of the following statements about microorganisms that cause human infection and disease is FALSE?


A) Prions appear to be made entirely of protein.
B) Examples of ectoparasites are fleas, ticks, lice, and scabies.
C) Bacteria can normally be found in humans.
D) Protozoa rarely cause illness in humans.

E) A) and C)
F) None of the above

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Whooping cough, or ________, is a highly contagious infection of the respiratory tract.

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Which of the following statements regarding gonorrhea and chlamydia is FALSE?


A) Both symptomatic men and women experience pain and burning with urination.
B) Women with either infection are usually asymptomatic.
C) Antibiotics are available for treatment.
D) Most men with chlamydia infection will have symptoms.

E) C) and D)
F) B) and C)

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A pathogen's ________ is the speed and intensity with which it is likely to cause an infection.

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Prevention strategies for malaria include eliminating ________ breeding grounds.

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The leading cause of death in children worldwide is ________.

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The most common infectious disease worldwide is ________.

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Which of the following situations has NOT been shown to transmit HIV between individuals?


A) oral intercourse
B) anal intercourse
C) vaginal intercourse
D) casual contact, such as holding hands or hugging

E) All of the above
F) None of the above

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By being vigilant and taking steps to reduce the spread of disease, we can eliminate infectious diseases within the next few decades.

A) True
B) False

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A(n) ________ infection is an infection that would be disposed of by a healthy immune system but that a weakened immune system cannot fight off.

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________ is a common bacterium in the colon (large intestine) that aids in digestion; if it enters the bladder, however, it causes infection.

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Common examples of pathogens are pollen and animal hair.

A) True
B) False

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The risk of contracting sexually transmitted diseases increases proportionally with your number of sexual partners.

A) True
B) False

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