| A | B |
|---|
| annual (27-1) | a plant that completes its life cycle and dies within one growing season |
| annual ring (27-1) | layer of secondary xylem formed each year |
| apical dominance (27-2) | the inhibition of the growth of buds along a stem by the apical meristem |
| apical meristem (27-1) | region where primary growth is produced |
| auxin (27-2) | a chemical that causes a stem to bend toward light |
| biennial (27-1) | plant that takes two growing seasons to complete its life cycle |
| cork cambium (27-1) | the meristem that lies within the bark |
| dormancy (27-2) | condition in an inactive seed or plant |
| germination (27-1) | process by which a plant embryo resumes its growth |
| hormone (27-2) | a chemical produced in one part of an organisms and transported to another part, where it causes a response |
| mineral nutrient (27-2) | needed by plants in small amounts |
| perennial (27-1) | a plant that lives for several years |
| photoperiodism (27-2) | the response of plants to the length of days and nights |
| primary growth (27-1) | growth that increases the length or height of a plant |
| secondary growth (27-1) | growth that increases the width of a plant's stems and roots |
| vascular cambium (27-1) | the meristem that lies just under the bark |
| tropism (27-2) | a response in which a plant grows either toward or away from a stimulus |
