http://www.classzone.com/books/ml_science_share/vis_sim/chm05_pg7_cell/chm05_pg7_cell.html
http://www.tvdsb.on.ca/WESTMIN/science/sbi3a1/Cells/cells.htm
http://library.thinkquest.org/12413/structures.html#cell_wall
http://www.cellsalive.com/cells/cell_model.htm
Which organelles are only found in animal cells?
Which are only found in plant cells?
Thursday, March 25, 2010
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