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vocab. #2 study


alveoli small sacs in lungs where gases are exchanged
cell basic building block of all living things
cell division when cells divide to make new cells
cell membrane surronds and protects the cell
cytoplasm jelly-like fluid that fills up the cell and holds cell parts
diaphragm muscle under the lungs that is part of the respiratory system
digestive system organ system that breaks down food so the body can absorb nutrients
lung sponge-like organ used to take air in the body
nucleus control center of the cell
nutrient substance the body uses for energy, growth and repair
organ group of tissues that work together to preform a specific function
organ system group of organs that preforms a major function in the body
respiration body process that uses oxygen to release energy in food
respiratory system system that takes in oxygen and removes carbon dioxide
tissue groups of similar cells with the same function
trachea main tube, or windpipe, through which the air passes to and from the lungs
villi tiny finger-like bumps in the small intestine