Which of the following is not a mechanism that assists venous return? . pressure generated by the heartb. gravityc. the skeletal muscle pumpd. central venous pressure being greater than pressure in the venulese. cardiac suction

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

bal is blood alcohol level. bac will normally be higher in a person with more body fat. so the answer to your question would be, as body fat decreases, the increasing rate of bal decreases.