| A | B |
|---|
| growth region | a tissue in a plant in which growth occurs |
| phloem | a tissue made of tubes that carry food throught a plant |
| xylem | a tissue made of tubes that carry water and minerals through a plant from the roots to the leaves |
| annual rings | the rings of wood that are prouuced yearly in the stems of trees |
| response | the reaction of a living thing to something in it`s environment |
| stimuls | an object or event that can cause a living thing to react |
| tropism | a plant response that involes growth |
| adaptation | a response or structure that helps living things survive |
| extinct | a species of animal or plant that no longer has any living members |
