Proper hand-washing and hygiene procedures by hospital staff are essential in preventing which types of infections?
a. Chronic
b. Latent
c. Acute
d. Nosocomial
D
Nosocomial infections are those that are contracted in the hospital environment, sometimes being transmitted by the contact of hospital personnel such as the nursing staff.
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Match the following items with the correct phrases.
_______1. Enable certain strains of Neisseria gonorrhoeae to adhere to the inner walls of the urethra. _______2. Enable Streptococcus pneumoniae to avoid being phagocytized early in the infection. _______3. A virulence factor specifically associated with Streptococcus pyogenes. _______4. Enable some bacteria to penetrate deeper and deeper into tissues. _______5. Enable some staphylococci and streptococci to dissolve clots. a. capsules b. pili c. M-protein d. kinases e. hyaluronidases
Which solute must be administered in high amounts because of its very efficient secretion and removal by the kidney tubules?
A. glucose B. vitamin K C. amino acids D. HCO3- ions E. penicillin
__________ are body parts that look alike in different lineages but did not evolve in a common
ancestor. Fill in the blank(s) with the appropriate word(s).
The figure illustrates
a. a pyramid of energy. b. a pyramid of biomass. c. a grazing food web. d. a detrital food web. e. the recycling of energy in an ecosystem