Answer the following questions true (T) or false (F)
1. A newly emerged infectious disease whose pathogen cause has not yet been identified is lethal in more than 90% of cases. Epidemiological evidence suggests that this pathogen is transmitted only through direct contact with the blood of ill or recently deceased patients. Patient blood and tissue samples would best be handled at BSL-2 until more information can be learned about the pathogen.
2. Skin is one of the most important physical barriers.
3. Antimicrobial peptides are able to stimulate leukocytes and destroy bacteria by disrupting their plasma membranes.
1. FALSE
2. TRUE
3. TRUE
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The typical mushrooms, but not truffles or morels, belong to the
A. imperfect fungi. B. basidiomycetes. C. zygomycetes. D. ascomycetes.
Which of the following is an exotic species?
a. Sumatran tiger b. koalas c. brown tree snake in Guam d. Atlantic cod
What is the term for segmented blocks of tissue that form on either side of the notochord and are added sequentially?
A. blastopores B. gastropores C. somites D. amniotic cells E. sensory neurons
How can surgeons help to limit nosocomial infections?
A) They should perform surgeries and invasive procedures only when absolutely necessary. B) They should only operate on healthy individuals. C) They should prescribe as many antibiotics as possible. D) They should prescribe immunosuppressive drugs to their patients.