Biological Organization
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13 terms
Terms | Definitions |
|---|---|
 cell | The basic unit of structure and function in living things. |
| tissue | A group of similar cells that work together to perform a specific job in the body |
| organ | A structure in the body that is composed of different kinds of tissue |
| organ system | A group of organs that work together to perform a major function in the body |
| organism | Any living thing |
| skeletal system | The organ system that provides support for the body, protects internal organs, & provides attachment sites for muscles |
| muscular system | The organ system that includes the muscles and allows the body to move |
| digestive system | The organ system that breaks down food into nutrients that the body's cells can use. |
| circulatory system | The organ system consisting of the heart and blood vessels that circulate blood through the body |
| respiratory system | The organ system that provides oxygen needed for cellular respiration and removes excess carbon dioxide from the body |
| muscle tissue | Produces movement |
| nervous tissue | Sends and receives messages. Found in the brain and spinal cord |
| organelles | Tiny cell parts with specialized functions ex: nucleus, chloroplast, vacuole, mitochondrion |
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