A 76-year-old man attends a meeting at his condominium association where many of his neighbors are sick with respiratory symptoms. He later develops a Haemophilus influenzae in-fection, which is classified as a _________ infection
a. nosocomial
b. hospital-acquired
c. community-acquired
d. heath care–related
C
A community-acquired infection is an infection contracted outside of a health care setting or an infection present on admission. Community-acquired respiratory infections commonly involve strains of H. influenzae or Streptococcus pneumoniae and are usually more sensitive to antibiotics.
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What characteristic would the R groups of amino acids have if they are located within the interior of biological membranes?
A. The R groups would be able to form ionic bonds. B. The R groups would be polar. C. The R groups would hydrophobic. D. The R groups would be hydrophilic. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about proteins in membranes? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The tracheae of adult terrestrial insects have been a factor in the great abundance of insects because they serve the same function in terms of the delivery of respiratory gases to the cells as do
A. the gills of aquatic insects. B. the lungs of mammals. C. the book lungs of spiders. D. the closed circulatory system of cephalopods. E. the Malpighian tubules of spiders.
Which hair-like cellular projections line the respiratory tract and sweep inhaled particles away from the lungs?
a. flagella b. cilia c. intermediate filaments d. pseudopods e. microvilli
Phytophthora infestans is a pathogen that attacks a variety of plants. This pathogen is an example of what type of protist?
A. fungus-like protists B. periphyton C. plankton D. algae E. protozoans