The Human Body - Cells Crossword

Your body is made up of trillions of _________________.
Groups of similar cells that do the same job are called ___________________.
Groups of tissues make up our bodies' ___________________.
Groups of organs make up our bodies' ________________________.
Systems make up the _____________________________.
______________________ cells carry electrical messages that control the body.
________ blood cells carry oxygen and nutrients to other cells and carry wastes like carbon dioxide away.
__________________ cells contain fibers that contract to make you move.
_______________ blood cells help fight diseases in the body.
The _______________________ controls everything that goes on inside the cell.
The nucleus and other cell parts are contained within a gel-like substance called _________________.