The population most likely to be affected by catheter-associated urinary tract infections is
A. women who have recently delivered a baby by caesarean section.
B. women who abuse intravenous drugs.
C. urban sex workers.
D. elderly women in a nursing home.
Answer: D
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Answer the following statements true (T) or false (F)
1. Glycolysis involves 10 enzyme-catalyzed steps, that can be grouped into three phases: energy investment phase, cleavage phase, and the energy liberation phase. 2. The electron transport chain consists of a series of redox reactions in which electrons are transferred to oxygen as the final electron acceptor. 3. Oxygen is an excellent final electron acceptor because of its low electronegativity. 4. NADH and FADH2 donate their electrons to protein complex I. 5. Ubiquinone is also known as coenzyme Q.
The male sage grouse who is “displaying” is likely _____
a. indicating that he are ready to spar with other males b. claiming part of the territory as his own c. attracting a mate in a monogamous union d. attracting a mate in a polygamous union e. indicating that he has won a mate
Radioactive isotopes are biological tools that are often used to
A) measure the size of fossils. B) build up a store of calcium in a cell. C) detect brain tumors and other important medical technologies. D) increase the pH of blood.
Intestinal gas is evidence of active ________ in some animals' digestive tracts
A) thermophiles B) methanogens C) yeast cultures D) halophiles