JH+death+by+disign

Notes
 * cancer cells dont commit suicide (PCD) and continue to divide into a tumor unlike regular cells that commit Programmed Cell Death (PCD)
 * Leeuwenhoek created the first microscope and named them after monk cells that they live in and they look like rectangles
 * animal cells are not like that they are in little bubble things and come together to form communities of cells that we call animals
 * Different cells have different jobs in the community muscle cells blood cells and all different types of cells
 * multicellular organisms came much much later than organisms that were unicellular during evolution
 * cells can communicate to each other through signals ( cancer cells dont listen to signal ) including move, grow, divide or dont divide
 * if you put one cell and put it away from all the other cells signals it kills itself
 * billons of cells do PDC every day in your body
 * the only reason cells live is to tell other cells tell it to
 * PDC requires the cell to make molecules to kill itself
 * A cell starts PDC when told to die
 * PDC - neat death destroy evidence (eat the dead cell)
 * Webbed feet - destroy web part - kill it
 * PCD of neurons(80%) in developing fetus
 * analogy: when making a animal you have to kill/ detroy/ remove the scaffolding
 * humans= 10^13 cells
 * worm = 959 cells
 * why make a cell if you are going to tell it to die? - probably because that cell had a purpose in a ancestor but not now