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Cells and Body
| Term | Definition |
|---|---|
| Cell | the building blocks of life |
| Nucleus | the control center of the cell that contains the DNA |
| Cell Membrane | a layer on the outside of the cell that holds together |
| Cytoplasm | the jellylike substance that fills the cell membrane |
| Unicellular Organism | an organism that can survive as a single cell |
| Circulatory System | heart, blood, blood vessels |
| Respiratory System | Brings in oxygen, trachea, lungs , diaphragm |
| Digestive System | mouth, esophagus, stomach, intestines |
| Nervous System | brain, nerves, spinal cord |
| Skeletal System | bones in the body (206 bones) |
| Muscular System | muscles, voluntary, involuntary |