Relier Pairs HUMAN BIOLOGYVersion en ligne LINK NAME AND DEFINITION par Guy Kruse 1 tissue 2 cells 3 nervous tissue 4 hormone 5 organ 6 epithelial tissue 7 organ system 8 muscle tissue 9 connective tissue 10 cardiovascular system A chemical messenger molecule. Layers of tightly packed cells that line the surfaces of the body. Organ system made up of the heart, blood, and blood vessels. Organs that work together to serve a common purpose. Bands of cells that contract and allow movement. Group of nerve cells that sense stimuli and transmit signals; found in brain, spinal cord, and nerves. Group of cells that are all involved in supporting and binding other tissues of the body; i.e. tendon, cartilage, bone, and blood. Structure made of two or more tissues that work together. Group of similar cells working together. Basic unit of structure and function of a living organism; the basic unit of life.
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