Make a cylinder which will be the glass and put a piece of paper that appears to be the top waterline of water. And put that inside the glass. I am not sure if this made any sense but yep thats what i did for a project before when i had to in like fourth grade.
The right atrium receives all of the systemic venous return Beneath the diaphragm, systemic venous flow enters the inferior vena cava, that is, blood from the abdominal and pelvic regions and the lower limbs.
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The distribution of organisms on the earth's surface is ultimately due to evolutionary change: Organisms or Species do not stay the same over time but are in a constant state of change as individuals. They are best able to live and reproduce within certain environments.
Explanation:
Plz give me brainliest.