The cyclical process of contracting and relaxing of the precapillary sphincters is called _________________
Fill in the blank with correct word.
vasomotion
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Changing the shape of the lens to keep the focal length constant is a process called
A) nearsightedness. B) farsightedness. C) myopia. D) astigmatism. E) accommodation.
A ________ is composed of a granular cluster of eight proteins called ________ with DNA wound around them.
A. nucleosome; centrosomes B. chromosome; centromeres C. chromosome; histones D. nucleosome; histones E. centromere; chromatin
What feature of phospholipids allows them to interact with aqueous cytosol and extracellular fluid, while still presenting a barrier to hydrophilic substances?
A. They are polar molecules. B. They are nonpolar molecules. C. They are lipids. D. They are extremely rigid molecules. E. They are amphipathic molecules.
The action(s) of aldosterone is (are) to
A. promote renal reabsorption of water. B. promote renal reabsorption of sodium. C. promote renal excretion of potassium. D. All apply.