In experiments with Caenorhabditis elegans, deleterious mutations accumulate at a slow but steady rate when the populations are grown in as benign an environment as possible, with optimal temperature and humidity, minimal crowding of individuals,
abundant food, and no predators or parasites. From what important evolutionary force do these conditions insulate C. elegans?
natural selection
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Allergic rhinitis and hives may both respond to antihistamines
Indicate whether this statement is true or false.
In the British Columbia forest industry, there has been a history of cutting large areas (clear cutting) for timber, then replanting these areas with lodgepole pine and hybrid white spruce. Based on your understanding of "climax communities", explain the potential impact of these practices on forest biodiversity in BC
What will be an ideal response?
A patient with a blood pressure of 120/75, a pulse rate of 40 beats/minute, a stroke volume of 70 mL/beat, and a respiratory rate of 25 breaths/minute will have a cardiac output of
A) 500 mL/minute. B) 1,000 mL/minute. C) 1,750 mL/minute. D) 2,800 mL/minute. E) 4,800 mL/minute.
A species of the genus Streptococcus is the leading cause of
A. tuberculosis. B. urinary tract infections. C. contaminated milk and meat. D. "flesh-eating" bacterial infections. E. food poisoning from rice.