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Published byColleen Griffith Modified over 9 years ago
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Review: can you list the 3 main ideas in the Cell Theory? A cell is the smallest unit that is capable of performing life functions. All living things are made of cells. The cell is the basic unit of life. Living cells come only from other living cells
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Levels of Organization in Living Things Cells can group together to form organisms: Cell The basic unit of life Tissue Group of cells working together Organ Group of tissues working together Organism Any living thing made of 1 or more cells Organ System Group of organs working together Your textbook is a system made of smaller parts. What levels of organization are found in your text book? How is this similar to levels of organization in living things?
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TWPS: Can you describe another grouping system where smaller parts group to make increasingly larger wholes? Levels of Organization in an Animal
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Plants have specialized cells: epidermal cells, xylem cells and phloem cells are examples Plants have tissues: such as transport tissue (vascular tissue/”veins”) or protection tissue (dermal tissue/”covering” of plant) Plants have organs: root, stem,leaf Plants have systems: shoot and root systems There are many types of plant organisms: rosebush, oak tree, Bermuda grass are examples LEVELS OF ORGANIZATION IN A PLANT TPS: Can you guess what type of cell might make-up protection tissue? Why is a root considered to be an organ?
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Quick Check! Match the diagram to the level of organization: A. Cell B. Tissue C. Organ D. Organ System E. Organism 1 3 5 4 2
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