| A | B |
|---|
| cell | the basic unit of structure and function in living things |
| cell membrane | the outside cell boundary that controls which substances can enter or leave a cell |
| nucleus | the control center of a eukaryotic cell that directs the cell's activities and contains the information tht determines the cell's form and function |
| cytoplasm | the material within a cell apart from the nucleus, jelly like substance that surrounds the organelles |
| tissue | a group of similar cells that perform the same funcion |
| organ | a structure in the bodty thaat is composed of different kinds of tissue |
| organ system | a group of organs that work together to perform a major function in the body |
| homeostasis | the maintance of stable internal conditions in an organism |
