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Other quiz:

Cell Bio › View

A phospholipid bilayer…

A. is a fluid mosaic

B. is semi-permeable

C. lets small / non-polar molecules through

D. all of the above

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The Cardiovascular System: Blood Vessels and Hemodynamics › View

Blood flows through the blood vessels because of the _________

A. establishment of a concentration gradient.

B. elastic recoil of the veins.

C. establishment of a pressure gradient.

D. viscosity of the blood.

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