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12 Cards in this Set
- Front
- Back
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Cell
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basic unit of a structure and function in a living thing
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Cell Membrane
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the outside boundary of a cell
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Nucleus
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the control center of a cell that directs the cells activities
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cytoplasm
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the material within a cell apart from the nucleus (jelly like substance)
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muscle tissue
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body tissue that contracts or shortens making body parts move
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connective tissue
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body tissue that provides uspport for the body and connects all of its parts
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nervous tissue
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a body tissue that carries electircal messages back and forth between brain and every other part of the body
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epithelial
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a body tissue that covers the surface of the body inside and out
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organ
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a structure in the body that is composed of different kinds of tissue
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homeostasis
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the process by which an organisms infomral environment is kept stable in spite of changes in the external environment
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stress
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the reaction of a person's body to potentially thereatening, challenging, or disturbing things
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organ system
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a group of organs that work toegher to perform a major function in the body
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