| A | B |
|---|
| FUNCTIONS OF A STEM | CARRIES SUBSTANCES BETWEEN ROOTS AND LEAVES AND SUPPORTS THE PLANT. |
| HERBACEOUS | SOFT STEMS |
| WOODY | HARD AND RIGID STEMS |
| HEARTWOOD | OLD XYLEM THAT HELPS TO SUPPORT THE TREE |
| SAPWOOD | ACTIVE XYLEM THA TRANSPORTS WATER AND MINERALS |
| CAMBIUM | FOUND BETWEEN PHLOEM AND XYLEM CELLS |
| PITH | STORES FOOD AND WATER IN YOUNG TREES |
| ANNUAL RINGS | REPRESENTS ONE YEAR OF A TREE'S GROWTH |
| VASCULAR BUNDLE | CONTAINS PHLOEM AND XYLEM CELLS |
| FUNCTIONS OF ROOTS | ANCHOR A PLANT IN THE GROUND AND ABSORB WATER AND MINERALS FROM THE SOIL |
| TAPROOT SYSTEM | CONSISTS OF A LONG THICK ROOT |
| FIBROUS ROOT SYSTEM | CONSISTS OF SEVERAL MAIN ROOTS THAT BRANCH REPEATEDLY |
| ROOT CAP | CONTAINS DEAD CELLS, PROTECTS THE ROOT FROM INJURY |
| ROOT HAIRS | INCREASE THE SURFACE AREA OF A ROOT |
| BARK | OUTER LAYER OF WOODY STEM |
| VASCULAR CYLINDER | FOUND IN THE CENTER OF ROOTS; CONTAINS XYLEM AND PHLOEM CELLS |
| PHLOEM | TRANSPORTS FOOD FROM LEAVES TO OTHER PLANT PARTS |
| XYLEM | TRANSPORTS WATER AND MINERALS FROM THE ROOTS TO THE STEM AND LEAVES |
| SUMMER XYLEM | SMALL,THICK-WALLED CELLS; FORMS DARK BROWN RING |
| SPRING XYLEM | LARGE, THIN-WALLED CELLS; FORMS LIGHT BROWN RING |
