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Decomposers and the worm habitat.
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Vascular plants have tubes. Xylem carries water to the plant. Phloem carries sugar throughout the plant.
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The Digestive System and membranes.
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Yeast and what does food do?
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Planting seeds and setting up a worm habitat
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Earth Systems -- Geosphere, Hydrosphere, Atmosphere, Biosphere
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Uneven Heating of the Earth
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A Day in the Life of a Ladue Schools Fifth Grade Center Student.
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