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14.1 Vocab.

cell the basic unit of structure and function in a living thing.
cell membrane forms the outside boundary of the cell.
nucleus the control center that directs the cell's activities and contains the information that determines the cell's form and function.
cytoplasm a clear, jellylike substance containing many cell structures called organelles.
tissue a group of similar cells the perform the same function.
muscle tissue carries out movement and can contract.
nervous tissue directs and controls the process of movement.
connective tissue provides support for your body and connects all its parts.
epithelial tissue protects the delicate structures beneath it.
organ a structure composed of different types of tissues.
organ system a group of organs that work together to perform a major function.
homeostasis the process by which an organism's internal environment is kept stable in spite of changes in the external environment.
stress the reaction of your body to potentially threatening, challenging, or disturbing events.
Created by: S730503