| A | B |
|---|
| organ system | a group of organs working together to perform a specific task. |
| organ | a group of like tissue working together to perform a task. |
| tissue | a group of like cells (i.e. cardio cells). |
| organism | a living thing |
| cardiovascular/circulatory system | responsible for pumping and delivering blood and other nutrients to the body. |
| respiratory system | responsible for exchanging the CO2 made in the cells with fresh oxygen. |
| muscular system | provides movement to the body. |
| skeletal system | provides structure for the body and protection to the vital organs. |
| digestive system | breaks down the food the body intakes and breaks it down to usable energy. |
| nervous system | controls both the involuntary and voluntary actions of the body. |
| excretory system | helps get rid of waste from the body through urination and sweat. |
