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chemistry terms


atom smallest units of an element that still retains the chemical and physical properties of that element
nucleus overall positive charge
protons electrically positive charge
neutrons neutral or no charge
molecule multiple atoms that are bonded together
cell basic structural and functional units of an organism
tissues are groups of cells and the materials surrounding them to work together to perform a certain function
organ are structures that are composed of two or more tissues ; they have specific function and shape
system consists of related organs with a common function
organism any living individual
four types of tissue epithelial tissue,connective tissue,muscular tissue, and nervous tissue
homeostatis regulates body fluids
body fluids dilute, watery fluids containing dissolved chemicals inside and outside of the cell
intracellular fluid watery fluid inside of cells
extracellular fluid outside of cells
interstitial fluid most abundant fluid
blood plasma watery portion of blood
synovial fluid found inside all movable joints
lymph special fluid inside lymph vessels
aqueous and vitreous humors maintain eyebal shape
cerebrospinal fluid brain and spinal cord
stressors stimuli that disrupt homeostatis
external stressors outside- body temp. smells,and skin contact
internal stressors inside- low glucose, poison, psychological
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Created by: ampamp12000