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Body Vocabulary
body systems, levels of organization
| Question | Answer |
|---|---|
| digestive system | breaks down food to get nutrients |
| circulatory system | uses the heart to move blood around the body |
| respiratory system | takes in oxygen and lets out carbon dioxide |
| esophagus, stomach, intestines | parts of the digestive system |
| lungs, mouth, bronchi | parts of the respiratory system |
| heart, veins, arteries, blood | parts of the circulatory system |
| tissues | groups of cells that do the same job |
| organs | things made of different tissues that are part of organ systems |
| organism | a living thing made of many organ systems |
| cell | the smallest unit of life |