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Across 2. pertaining to or referring to the front of the body 5. large, hollow spaces in the body that house the various organs 8. a type of cell duplication that involves DNA doubling and cell division 9. structure of an organism 10. posterior or pertaining to the back 11. to the front of the body 12. the fundamental working unit of the nervous system

Down 1. the plane that divides the body horizontally into equal upper and lower portions 3. the function of an organism or the science of the functions of living organisms 4. a flat surface resulting from a real or imaginary cut through a body in the normal anatomic position 6. threadlike fibers that carry messages away from the nerve cell body 7. sex cells