Plant Root and Shoot System. Plants have two Organ Systems: the shoot system and the root system. Stems have many jobs, including supporting the plant; acting like the plant's plumbing system, conducting water and nutrients from the roots and food in the form of sugar (glucose) made in the leaves to other plant parts.
The largest vein in an animal's body is in fact the Vena Cava.
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Studying history enables us to develop better understanding of the world in which we live. Building knowledge and understanding of historical events and trends, especially over the past century, enables us to develop a much greater appreciation for current events today.
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