You are working with a patient who thinks they have been poisoned. Their blood pressure is elevated and tissue biopsies of the patient's liver show extra sodium channels in the kidneys. You suspect that the patient has been given
A. epinephrine.
B. aldosterone.
C. follicle-stimulating hormone (FSH).
D. insulin.
E. testosterone.
B. aldosterone.
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The following are steps involved in abscisic acid's (ABA) role in stomata closure. Arrange them in the correct order of events. a. The resulting voltage change across the guard cell plasma membranes opens gated transport proteins that allow potassium ions to exit the cells
b. ABA binding to its receptor on a guard cell membrane causes the release of nitric oxide (NO). The NO activates calcium transport proteins and an influx of calcium occurs. c. Water follows the solutes by osmosis. d. The guard cells lose turgor and collapse against one another, closing the stoma. e. Calcium influx activates transport proteins that pump negatively charged malate and chloride ions out of the cells. Thus, the overall charge of cytoplasm increases, and the overall charge of extracellular fluid decreases.
Which of the following words describes a tentative explanation to a given question?
a. law b. theory c. hypothesis d. fact e. principle
Opportunistic pathogens
A. cause disease in every individual. B. are always pathogens. C. cause disease in compromised individuals. D. have well-developed virulence factors.
The Nod factor is an important component of
A. the Calvin Cycle. B. legume-bacterial interactions. C. mycorrhizal-terrestrial plant interactions. D. the formation of the digestive enzymes of carnivorous plants. E. trichloroethylene metabolism.