Age-related changes in systems other than the nervous system include
a. a decrease in the size of the heart.
b. a break down of alveolar walls in the lungs.
c. the buildup of cholesterol plaques in blood vessels.
d. a decrease in blood transport to organs.
e. all of these.
E
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Optimal recovery and identification of anaerobic bacteria in clinical specimens occurs when:
a. the initial incubation period is at 35°C to 37°C for 48 hours. b. plates are incubated for at least 3 days before discarding as negative. c. the initial incubation period is at 35°C to 37°C for 24 hours. d. thioglycollate broth can be inspected daily for 3 days.
Osmosis is an example of ____
a. facilitated diffusion b. passive transport c. active transport d. exocytosis e. endocytosis
Which of the following is NOT a trait that is the result of, or is affected by, the interaction of more than one gene?
A. human skin color B. sickle-cell anemia C. cleft palate D. height
Cotransduction establishes the general order of genes on a bacterial chromosome, while conjugation is more specific and thus may be used to establish precise distances
Indicate whether the statement is true or false