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Definition
| a group of cells working together |
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Definition
| a group of tissues working together |
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| a group of organs working together |
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Definition
| breaks down food so nutrients can be absorbed into the blood and/or cells (stomach and intestines) |
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Definition
| brings oxygen to blood and removes carbon dioxide (lungs) |
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Definition
| carries oxygen and nutrients to cells while removing waste (blood, heart) |
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| filters blood to remove waste (kidneys) |
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Definition
| any organ system that removes something. Kidneys remove liquid waste, intestines remove solid waste, lungs remove carbon dioxide and some water, skin removes heat and some water. |
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Definition
| defends against bacteria, viruses, and other parasites (white blood cells, lymph nodes) |
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Definition
| controls and coordinates body functions (brain, nerves) |
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| group of neurons, connects the brain to muscles or glands |
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| all of the glands that make hormones |
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Definition
| a chemical messenger released by one cell that travels to another, usually through the bloodstream |
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