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Requirements for Transportation of materials in body
Fluid to carry materials - blood; tubes/body spaces to move fluid - blood vessels; mechanism to move fluid - heart
Why do we need a transportation mechanism in the human body?
Large multicellular organism and all of our cells are not in contact with the outside environment; transportation mechanism is needed to carry oxygen to the cells and wastes away from the cells.
Valve located on the left side of the heart between the left ventricle and left atrium
Valve located on the right side of the heart between the right ventricle and the right atrium
Internal environment remains the same even though the outside environment changes
An animal who's body temperature fluctuates depending on the temperature of the animals environment
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