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These measures benefit the patient in improving circulation so that he can successfully envy the blood efficiently from the lower extremities to the heart.
The use of elastic stockings is to increase the pressure and decrease the diameter of the veins, favoring venous return
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The <u>vas deferens</u> transports mature sperm to the urethra in preparation for ejaculation.
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Much change is due to random genetic drift rather than positive selection. Some are harmful and are likely to be eliminated by natural selection – by death of the embryo, for instance. ...
Most heterotrophs are chemoorganoheterotrophs<span> (or simply </span>organotrophs<span>) who utilize organic compounds both as a carbon source and an energy source. The term "heterotroph" very often refers to chemoorganoheterotrophs. Heterotrophs function as consumers in </span>food chains: they obtain organic carbon by eating autotrophs or other heterotrophs. <span>Most </span>opisthokonts<span> and </span>prokaryotes<span> are heterotrophic</span>