Alena Medina


 CELLS

Cells are the basic unit and structure  of all living things.  Close to 100 trillion make up our bodies.  They are composed of many different organelles, which, just like the organs in our bodies have very specific jobs to keep the cell healthy and running.

 Our bodies have very special cells called "STEM CELLS".  Why are they so special, because they can become any cell type in the body.

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      worksheet                       Cancer cell surrounded by Lymphocytes

 

 

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