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Author Question: Airborne droplet nuclei are responsible for the transmission of: a. legionellosis. c. ... (Read 91 times)

nramada

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on: Jul 16, 2018
Airborne droplet nuclei are responsible for the transmission of:
 
  a. legionellosis. c. staphylococcus.
  b. histoplasmosis. d. tuberculosis.

Question 2

Viruses are usually described as nonliving because they:
 
  a. do not have a cell wall.
  b. are unable to self-replicate.
  c. must create endospores to survive.
  d. cannot live without another living organ-ism.


laurnthompson

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
Tuberculosis is transmitted by droplet nuclei. Legionellosis is transmitted by airborne aerosols; histoplasmosis, by airborne dust; and staphylococcus, by direct contact.

Answer to Question 2

ANS: B
Viruses must invade a living organism to replicate. This is the reason that they are described as nonliving. They do have a wall-like structure that is made of protein. They do not create endo-spores and are able to live outside a host; however, they cannot replicate outside of a host.


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